B09_A1_Attach_14d_Ahwahnee_HSR_Final_Submittal_-_Report_0001.pdf

Appendix D: Stained and Leaded Glass SurveyARCHITECTURAL RESOURCES GROUP

Histor ic Structures Report

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January 2011

9. Crizzling – A network of micro-cracks is visible as a result of the chemical deterioration of the glass.

10. Cracks – Th ere are minor cracks or broken pieces of glass as noted on the photographs.

11. Abrasions – Th ere are several linear abrasions to the exterior of the glass. It is not clear what has caused these scratches.

12. Corrosion of lead cames – Th e loose corrosion poses the highest health hazard. For this reason, the windows should not even be dusted or brushed dry except by a qualifi ed lead technician.

Dust and debris will need to be collected and disposed of in accordance with all federal, state and local regulations.**

13. Absence or loss of lead putty.**

14. Paint – the exterior paint is in good condition overall. Th e most recent paint campaign has the top brown coat overlapping the metal window frames by approximately ⅓ 2 inch, which is appropriate. Th e overlap helps to seal the edges and keep water and insects out. However, some of the gaps will require further sealing. Th ere are several minor areas of overpaint in the form of brush strokes on the glass or lead as well as paint drips.*

*Conditions noted overall and not marked on every drawing.

** Conditions noted in text description per window but not noted on drawings due to their overall nature per specifi c window.

Window-Specific Conditions Th e following section describes specifi c conditions as noted for each window.

GL-1

Interior

• Solder is more yellow in color than some of the other windows, possibly indicating distinct restorations or original solder used.

• Drips associated with water leaks.

• Center left panel defl ects when pushed approximately ⅛ inch.

Exterior

• Putty residues on all panels around cames.

• Gaps between panel edges and wood frame.

GL-2

Interior

• Center left panel defl ects when pushed approximately ¼ inch.

• Center panel bowed approximately ¼ inch toward interior.

• Drips associated with water leaks.

Exterior

• Almost no putty on left and right lower panels (putty in situ).

• Streaks probably from a rag during a previous cleaning.

GL-3

Interior

• Extreme cobwebs, dirt and grime, more so than other interior windows.

• Drips associated with water leaks.

Exterior

• Minor putty residues around cames.

• Streaks probably from a rag during a previous cleaning.

• Panel bowed ¼ inch toward interior.

GL-4

Interior

• Evidence of previous tie-rods, now removed.

• Mild lead corrosion in the form of white spots overall.

• Center panel defl ects when pushed approximately ⅓ 2 inch.

G-6 exterior (Source: ARG)

G-8, 2009. (Source: ARG)

ARCHITECTURAL RESOURCES GROUPAppendix D: Stained and Leaded Glass Survey

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January 2011

Exterior

• Streaks probably from a rag during a previous cleaning.

• Center panel defl ects when pushed approximately ¼ inch.

• Center panel bowed ¼ inch toward interior.

• Putty residues on glass around cames on center panel.

• Haze especially on amber glass and some red glass.

GL-5

Interior

• Low putty, up to 1⁄16 inch recess to apply new putty in situ.

Exterior

• Lack of putty on some cames with up to 1⁄16 inch recess.

• Center panel bowed ¼ inch toward interior.

GL-6

Interior

• Generally good condition overall.

• Grime on surface needs overall cleaning.

• Small cracks in glass.

• Lower left corner is bowed and may require removal of panel to fl atten.

Exterior

• No defl ection.

• Haze especially on amber and red glass.

• Putty residue around cames on top-center, bottom-center and bottom-right panels.

• Bottom-center and bottom-right panels bowed less than ¼ inch toward exterior.

• A few areas where putty is slightly recessed.

GL-7

Interior

• Lead corrosion is present in the form of white spots on cames.

Th e corrosion seems worse on this window but exists on the interior of other windows. Th e corrosion is likely due to periods of high humidity inside the room.

• Recession of putty up to ⅓ 2 inch.

• Edges of fl at cames curled out.

• Center panel has evidence of a previous tie rod. Th ere is no evidence on the adjacent wood trim.

Exterior

• Center panel defl ects when pushed less than ⅓ 2 inch.

• Bowing up to ½ inch on lower half of center panel.

• Putty residues around cames. Putty seems to be applied by diff erent hand than windows 8 – 10. May have been previously restored.

• Cames not as straight on horizontal lines as with windows 8 – 10.

• Putty is recessed on right and left panels overall.

• Amber and red glass have slight haze almost overall.

GL-8

Interior

• Lead corrosion is present, not as prevalent as interior of GL-7, but suffi cient to warrant protection from hazardous materials during any type of cleaning.

Exterior

• Streaks likely from previous cleaning with rag.

• Center panel defl ects when pushed less than ⅓ 2 inch.

• Minor spall in glass piece in lower left corner.

GL-9

Interior

• Center panel defl ects when pushed up to ¼ inch.

• ½-inch fl at cames have no putty and do not appear to have had putty as is typical of some of the other windows surveyed. It is unclear whether this was a particular restoration technique; or whether other windows with putty residues have had putty added later.

• Bowing on all three panels approximately ¼ inch toward the interior.

G-9 detail - note corrosion on lead came, 2009. (Source: ARG)

GL-8 detail of center panel. Note discoloration at edges of yellow glass and general dirt on panel, 2009. (Source: ARG)

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January 2011

Exterior

• Streaks from previous cleaning with rag.

• Minor drips of paint or putty.

• Abrasions to surface of glass.

• Putty in good condition.

• Gap along bottom edge of upper right section.

• Crack in glass (fi ll in situ with acrylic resin).

GL-10

Interior

• Generally good condition overall

• Grime on surface, needs overall cleaning

• Streaking especially on clear glass

Exterior

• Streaks from previous cleaning with rag.

• Minor haze mostly on amber pieces.

• Minor area of crizzling.

• Minor spalls to glass in one or two areas. Th ese may be consolidated with an acrylic resin to help keep dirt out.

Recommendations Hazardous Materials Warning Th e windows contain lead and require special handling to avoid health hazards. All persons working with the stained glass, even cleaning it using dry methods such as a soft brush, should be trained in lead awareness. Even cleaning for regular maintenance may trigger a health hazard and should be approached following all federal, regional and local ordinances.

Access Use a 19-foot lift with an extension to access windows for cleaning and treatments. A lift without the extension platforms will not laterally reach the window surfaces in all cases. Alternatively, a scaff old could be used, but setting one up for the windows only is not necessary and could cause further risk of damage during assembly/ disassembly.

Gaps between the wood frame and window panes should be sealed with a carefully selected sealant that is compatibility with the substrate and windows. Th e sealant should be easily removable when necessary for future repairs and re-sealing. Sealant must be safe to use on lead. Some sealants may have components that can be corrosive to lead.

Qualifications All cleaning tests, writing specifi cations, cleaning and treatments should be conducted by a conservator experienced in stained glass conservation treatments.

Accessing the windows requires a lift or scaff olding. Persons working on the windows will need to be lift certifi ed and have training in the proper use of fall protection equipment. Scaff olding should be erected only by persons experienced in working in historic buildings.

One slip of a scaff old pole or board during scaff old assembly or disassembly can break a historic window.

Testing and Mock-ups Test phase for cleaning methods and materials from least invasive to most.

1. Remove loose dirt, dust, cobwebs, and corrosion products with soft natural brush and HEPA vacuum.

2. Remove loose lead putty and putty residues with dry brushes and wooden picks. Leave stable putty in situ.

3. Test for removal of loose grime using latex sponges in a dabbing motion, being careful not to scratch the surface.

4. Remove grease and grime using a non-ionic surfactant less than

1% in distilled water. Adjust as needed depending on tests. Apply with slightly dampened soft cotton cloth.

5. Rinse with soft cotton cloths dampened with distilled water. Dry surfaces completely. An air blower (without heat) may be used to help dry surfaces quickly.

6. Test solvents for further removal of residues and overpaint.

Minimize use of solvents. Use low- or no-odor solvents and only if absolutely necessary in interiors.

G-9 - Upper left panel from exterior, 2009. (Source: ARG)

G-7, 2009. (Source: ARG)

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January 2011

7. Apply new putty to lead cames in situ and wipe away excess. A clamping system with boards may be utilized on the opposite side of the in-situ panel being treated to keep panels in plane.

8. Test acrylic resin to consolidate broken glass crack.

9. Apply mock-up of acrylic exterior-grade fl exible, paintable caulk to gaps.

10. Test typical areas on interior and exterior.

Treatment

• All of the windows will require cleaning by a conservator as per test results and mock-ups.

• Loose lead putty and putty residues should be removed.

• Some of the windows can be further stabilized by adding additional white lead putty in situ.

• A few of the windows may need to be removed for treatment, especially those that are deformed. Th ey may require fl attening on a table and re-leading. Th e current condition of most windows does not warrant removal for treatment. Removal increases the risk of further damage. Cames should only be replaced when they are no longer structurally sound. It is not necessary to remove or replace whole glass pieces to repair a minor crack in a glass piece.

• Breaks in glass pieces can be consolidated in situ. A reversible clear acrylic polymer resin is recommended for this type of treatment. A clear resin such as Acryloid (or Paraloid) B-44, B-72 or B-48 can be used. Epoxy repairs should be reserved for treatments where additional structural integrity is warranted.

In addition, it should probably be used when the window is in a studio and the edges of the glass can be properly isolated and cleaned prior to applying the adhesive.

• Apply pre-tinted grey acrylic caulk sealant to gaps where noted.

Smooth to gap. Do not leave excess or residues. Wipe excess with damp rag. Do not apply caulk where there are no gaps. Caulk may later be painted to match surrounding wood.

• Secondary protection for the windows is not recommended at this time. Th e windows are located in a well-protected area and are generally not subject to vandalism. A secondary glazing brings with it additional risks of damage due to condensation.

Dirt, insects and cobwebs can also get trapped between the original window and secondary glazing and access is more diffi cult for cleaning. Secondary glazing is of benefi t where stained glass windows are more exposed to the elements or subject to vandalism. A conservator experienced with stained glass windows should be consulted for any secondary window glazing design.

Maintenance

• Persons cleaning the windows for regular maintenance will need to be trained in lead awareness and be trained by a conservator.

• Do not spray the windows with water. Th ey are not well sealed and the water can leak inside. Even aft er repairs, regular cleaning should not utilize water.

• Solvents, including water, can damage historic glass. Water and moisture contribute to corrosion of the lead.

• Cleaning products containing chemical such as ammonia or acids may permanently etch the glass and should not be used.

• Th e windows can be occasionally brushed to remove cobwebs and loose dirt using a soft painters brush and a HEPA vacuum.

See under “Qualifi cations.”

• Clean adjacent plate-glass windows using a lift . First use a dry brush followed by a damp rag to remove dirt and grime. Do not spray water onto adjacent stained glass windows. Do not wipe adjacent stained glass windows.

G-1 Center panel from exterior, 2009. (Source: ARG)

GL-1 bottom rail - note water staining, dirt and dented frame, 2009. (Source: ARG)

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January 2011

L E A DE D G L AS S W I N D OW SU RV E Y,

SI XT H FLO OR , JUNE 2009

Leaded glass windows were examined on the sixth fl oor from the interior.

Operable windows were opened whenever possible, and the exterior was partially viewed by leaning out an open window. Movable aluminum-framed screens were opened whenever possible.

Images were taken of the room number, followed by an overall interior image of a set of windows, followed by condition details for each set of windows.

Drawings were not used or marked, and conditions were noted in text format. For the purposes of this survey, windows are labeled clockwise around each room with the room number preceding. Each set of windows is labeled numerically (e.g., 1, 2, 3), and each vertical set of stacked individual transom and casement was labeled with a letter (e.g., a, b, c).

Th e leaded windows are all of the same pattern. Individual pieces of cut glass are joined by fl at or round (in cross section) “H”-shape lead cames that vary between ⅜ -inch to ½-inch wide. Th e variation in came shapes may be indicative of various previous restoration campaigns. Further research will be needed to determine the size and shape of original cames. Lead putty appears to have been applied to both interior and exterior sides of the joints. Glazing compound surrounds the window frame on the exterior. It is likely that individual metal points spaced around the perimeter hold the glass assembly in place underneath the glazing compound, although this was not confi rmed during the survey.

Except for the restored windows with secondary glazing in Room 605, the leaded glass windows are the only barrier between external weather and the interior rooms.

General Conditions All glass surfaces appear clean and are likely kept clean on a regular basis by Housekeeping staff .

Previous repairs are evident on various windows including:

o Replacement hardware o Replacement lead cames o Double glazing o Reinforcement metal fi ns.

Cracked putty and, in some cases, falling out or missing putty.

Cracked glazing compound.

Peeling paint on exterior with exposed wood.

Defl ection of windows when pushed up to at least ⅛ inch, more in some, as noted on individual windows.

Wood frames are warped, and windows sashes do not seal tightly into frames to protect from weather.

Several latches do not fi t, are too tight, or windows do not fully close due to warpage.

Abrasion to wood frames, especially around latches.

Specific Conditions

607 1a 3-inch glazing compound missing.

607 1b Lower leaded glass panes bowed about 1 inch.

607 1c Corroded lead cames on the exterior transom window.

Unpainted compound repair.

Re-putty within 3 years. Replace cracked or deteriorated lead cames with size and shape to match original.

607 2a Defl ection when pushed up to ½ inch.

Cracked putty.

Missing glazing compound on exterior 4 inch section.

Leaded glass window in room 604, 2009. (Source: ARG)

Detail of typical window came and glass, 2009. Note added reinforcing bars. (Source: ARG)

SIXTH FLOOR

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January 2011

607 2b Has 2 support fi ns added, probably as a mock up as this is the only window with this feature added.

Restored with newer cames.

607 2c Crack in two pieces of glass at upper right.

604 1a (Dining Room) Missing latch. Hasp is replacement.

Abrasion to wood frame around latch.

Chipped and worn varnish from water damage on lower sash member.

Broken glass near upper right corner of lower window.

604 1b Lower window out of plane about ½ inch. Needs fl attening and reinforcing.

604 1c Broken glass in lower right corner.

Lower window out of plane about ½ inch and has pulled away from the wood frame along the bottom edge.

Compound break in glass on transom.

Hardware chain appears to be replacement or addition and is abrading wood.

Wood frame warped. Latch does not close. Do not force window closed. Leaded glass is very fragile on this window.

604 2a Lower window out of plane about ½ inch.

Previous repair on exterior of transom is not painted and in poor condition.

604 2b Lower window out of plane over ½ inch.

604 2c Lower window out of plane over ½ inch.

Replacement latch does not fi t. Wood frame is warped. Must force to close.

604 3a Lower window severely out of plane and dangerously loose.

Lead cames are cracked and broken. 2 inches of came has pulled away from the glass near the upper left of the window. (See lower left image)

Does not latch.

Transom is out of plane.

604 3b Lower window out of plane.

Broken lead cames.

Frame is warped.

604 3c Frame is warped.

604 3d Lead putty is falling out Lower window defl ects when pushed less than ⅛ inch.

604 3e Frame is warped.

Does not latch.

Lower window defl ects when pushed less than ⅛ inch.

605 1a Has secondary glazing of single sheet of plate glass attached with wood frame to exterior of window.

Slightly deformed sealant inside double glazing.

605 1b Has secondary glazing of single sheet of plate glass attached with wood frame to exterior of window.

Sill - note putty deterioration, 2009. (Source: ARG)

604 3a - came broken and pulled away from glass, 2009. (Source: ARG)

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January 2011

Lower window is out of plane about ½ inch.

Broken glass near middle of left side.

Film of dirt or grime inside double glazing.

605 1c Has secondary glazing of single sheet of plate glass attached with wood frame to exterior of window.

Th ree broken glass pieces in transom at the middle left side to bottom left .

Recommendations

High Priority Some of the windows are extremely fragile and pose a safety risk to hotel guests should the glass collapse. Place a sign on windows in room 604 (e.g.“DO NOT TOUCH” AND “DO NOT OPEN”) to deter usage. Th is set of windows is very fragile and will require immediate attention. A sheet of acrylic can be temporarily applied to the interior to prevent usage, or remove window and install temporary replacement glazing while the original window is repaired.

For windows in good condition, replacing or adding new putty around the cames within a few years should help stabilize them.

Windows that are deformed and out of plane should be removed and repaired in a studio where they can be laid out fl at. Damaged cames will need to be replaced and new putty applied between the cames.

Some of the smaller breaks can be adhered using a clear epoxy resin (Hxtl) so that the original pieces can be re-used. For compound cracks or breaks in glass that require structural integrity, the broken pieces can be replaced with matching glass. Locations of replacement glass should be documented.

Consider installing metal fi ns to reinforce all lower windows similar to window 607 2b. Th e added reinforcement will help prevent future bowing of the panes.

Fins should be of a metal composition that will not cause excessive galvanic corrosion to the lead.

Consider installing a secondary plate-glass pane on all leaded glass windows in a manner similar to those installed in Room 605. Th is system will be more eff ective at protecting the interior rooms from inclement weather and will likely reduce energy costs for heating and cooling the spaces. Th e exterior glass should be energy refl ective to reduce the amount of heat and light transmitted to the original leaded glass. Weep holes should be added to the bottom to allow air exchange. Th e secondary panes will need to be designed in manner that does not signifi cantly alter the historic appearance.

Confi rm shape of original cames, if possible. A combination of shapes may have originally been used. For example, fl at for vertical joints and rounded for diagonal joints. Replace damaged cames with appropriate shaped cames to match original historic shapes.

Maintenance Windows should be cleaned with a dry, soft , cotton cloth. In some cases a slightly dampened, soft , cotton rag may be used. Avoid applying pressure to the glass that causes the windows to defl ect.

Do not use commercial glass cleaning products, other cleaning products, ammonia, vinegar, soap or other chemicals on the windows.

Broken glass, 2009. (Source: ARG)

Typical wood frame deterioration at bottom stile, 2009. (Source: ARG)

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January 2011

Appendix E: Comprehensive List of Drawings in Chronological OrderARCHITECTURAL RESOURCES GROUP

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January 2011

APPENDIX E: C OMPREHENSIVE LIST OF DR AWINGS

I N C H RONOL O G IC A L OR DE R

A ppendix E: C om prehensive List of D raw ings

ARCHITECTURAL RESOURCES GROUPAppendix E: Comprehensive List of Drawings in Chronological Order

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January 2011

Comprehensive List of Drawings in Chronological Order

DNC Scanned files NPS DSC files NPS Drawing #

Year Dwg date Architect or Engineer Description Drawer Folder ARG Photograph No. of Archive Dwgs.

3/1/1925 No name Plot no 2 Ahwahnee area E1-2 YCS Ahwahnee 2 19250301, 19300930 Ahw Dwg 029

9/14/1926

Martin T. Hooper, Gilbert Stanley Underwood Sheet H.12 heating details E1-2 YCS Ahwahnee 5 Ahw Dwg 008, Ahw Dwg 009

1926 No date Gilbert Stanley Underwood Heating riser diagram E1-2 YCS Ahwahnee 2 Ahw Dwg 035 1926 No date Ernest Born Acid etch floor drawings E1-3 YCS Ahwahnee 9 Ahw Dwg 048 to Ahw Dwg 051 1926 9/21/1926 Gilbert Stanley Underwood Original building blueprints E6-7 19270601 Not photographed 1927 6/25/1927 Gilbert Stanley Underwood Plot, drainage and sprinkler plan E1-2 YCS Ahwahnee 1 Ahw Dwg 037, Ahw Dwg 038 1927 No date Gilbert Stanley Underwood Porte cochere drawings E6-7 1928 5/21/1928 Eldridge T. Spencer Drawings of mechanical house - hot water heaters for cottages E1-2 YCS Ahwahnee 1 Ahw Dwg 039 1928 fall 1928 George B. Vaughn, Carl Purdy Wildflower planting E1-3 YCS Ahwahnee 14 Ahw Dwg 045 1928 8/1/1928 Eldridge T. Spencer Ahwahnee gate entrance, deer guard E1-3 YCS Ahwahnee 9 Ahw Dwg 052

3/22/1928 Eldridge T. Spencer Details of tie beam and rafter construction for living room, cottage type D E1-3 YCS Ahwahnee 9 Ahw Dwg 053

1928 3/24/1928, 5/11/1928, 3/22/1928

Eldridge T. Spencer Ahwahnee cottage drawings - original E1-3 YCS Ahwahnee 10 19280301 Ahw Dwg 095 to Ahw Dwg 103

1928 fall 1928 George B. Vaughn, Carl Purdy Wildflower planting E6-7 Ahw Dwg 122 1928 7/1/1928 No name Distribution panel - Ahwahnee Bungalow E1-2 YCS Ahwahnee 1 1929 6/28/1929 Gilbert Stanley Underwood Plot, drainage and sprinkler E1-3 YCS Ahwahnee 13 Ahw Dwg 056 1929 4/1929 Clifford Creighton Survey of Ahwahnee Grounds E1-3 YCS Ahwahnee 8 19290401 Ahw Dwg 058 to Ahw Dwg 060 1929 9/6/1929 George B. Vaughn Planting scheme for brook east of The Ahwahnee E6-7 Ahw Dwg 121

No date George B Vaughn, F.L. Olmsted & E.T.

Spencer Consultants Plan for revision of and planting of approach drive and parking space E1-3 YCS Ahwahnee 8 Ahw Dwg 061

1930 8/2/1930 George B. Vaughn Plans for revision and planting of approach drive and parking space E6-7 Ahw Dwg 118 1930 July 1930 George B. Vaughn Planting study for approach drive E6-7 Ahw Dwg 119 1930 No date George B Vaughn, F.L. Olmsted & E.T. Plan for revision of and planting of approach drive and parking space E6-7 Ahw Dwg 120 1930 No date Eldridge T. Spencer and Olmsted Brothers Plot of Ahwahnee Hotel Grounds E6-7 Ahw Dwg 130 1930 7/1930 F.L. Olmsted, drive revision

G.B. Vaughn, planting sketch Suggested revision approach drive and planting E6-7 Ahw Dwg 186

1930 No date No name Eagle at entrance sign E1-3 YCS Ahwahnee 6 Ahw Dwg 074, Ahw Dwg 075 1931 4/28/1931 Eldridge T. Spencer Lighting - Ahwahnee entrance E1-2 YCS Ahwahnee 4 Ahw Dwg 011 1931 4/20/1931 Eldridge T. Spencer Lighting Ahwahnee Grounds E1-2 YCS Ahwahnee 2 Ahw Dwg 028 1931 5/28/1931 Eldridge T. Spencer Typical section of deer guard Ahwahnee Hotel Grounds E1-3 YCS Ahwahnee 6 Ahw Dwg 070, Ahw Dwg 071 1932 No date Eldridge T. Spencer Reflecting basin @ entrance Ahwahnee Hotel E1-2 YCS Ahwahnee 2 Ahw Dwg 026, Ahw Dwg 027 1935 1935 Robert Hunter Jr. Ahwahnee hotel golf course E6-7 Ahw Dwg 139 1936 10/2/1936 Eldridge T. Spencer Hot Water Steam Piping in Tunnels A-BOILER36 1937 9/14/1937 Eldridge T. Spencer Reconstruction of deer guard E1-3 YCS Ahwahnee 6 Ahw Dwg 073 1939 10/26/1939 Eldridge T. Spencer Heat Insulation of walls adjoining boiler room stack E1-2 YCS Ahwahnee 5 Ahw Dwg 005, Ahw Dwg 006 1939 11/5/1939 Eldridge T. Spencer Boiler room insulation E1-2 YCS Ahwahnee 5 Ahw Dwg 007 1939 10/31/1939 Eldridge T. Spencer Sound insulation of Elevator Penthouse A.ELVAT

9/1/1942 F. Hawthorne, Beckner Manufacturing Co. Sprinklering for Ahwahnee grounds E1-3 YCS Ahwahnee 9 Ahw Dwg 047

1943 U.S. Navel Convalescent Hospital (Ahwahnee Hotel) 99991231 104-8427 1943 U.S. Navel Convalescent Hospital (Ahwahnee Hotel) 19430601 104-8275, 104-

8275A 1946 No date Eldridge T. Spencer Women Employees Dormitory AHW-DORM.FP_46 1947 9/26/1947 Eldridge T. Spencer Fire alarm system E1-2 YCS Ahwahnee 5 Ahw Dwg 002 1947 9/26/1947 No name Fire alarm riser diagram E1-2 YCS Ahwahnee 1 Ahw Dwg 040

YOSE ArchivesDrawing Information

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January 2011

Comprehensive List of Drawings in Chronological Order

DNC Scanned files NPS DSC files NPS Drawing #

Year Dwg date Architect or Engineer Description Drawer Folder ARG Photograph No. of Archive Dwgs.

YOSE ArchivesDrawing Information

1947 11/18/1947 Eldridge T. Spencer Rehabilitation of Ahwahnee Fence E6-7 Ahw Dwg 117, Ahw Dwg 123 1947 1947 Eldridge T. Spencer Fire Alarm System E6-7 Ahw Dwg 162 1947 11/17/1947

Eldridge T. Spencer Escape stair from mezzanine balcony E6-7 19470701, 19471101 Ahw Dwg 163

1949 5/10/1949 Eldridge T. Spencer Ahwahnee golf course kiosk E1-3 YCS Ahwahnee 6 Ahw Dwg 065 1950 No date Eldridge T. Spencer Hurdle fence around Ahwahnee E1-3 YCS Ahwahnee 6 Ahw Dwg 068 1950 No date No name Awning for Tennis courts AHWTENNISCOURT 1951 4/17/1951 No name Pump shelter and relocation of pump E1-3 YCS Ahwahnee 9 Ahw Dwg 054, Ahw Dwg 055 1951 3/28/1951 Eldridge T. Spencer and Wm. Clement

Ambrose Remodeling of Foyer Lounge E6-7 A-BAR-FP 19510601 Ahw Dwg 135

1951 2/24/1951 Dohrmann Hotel Supply Co Kitchen equipment and exhaust A-KITEQP 1952 3/25/1952 Eldridge T. Spencer and Wm. Clement

Ambrose Remodeling of Foyer Lounge - Sound System A-BAR SOUND

1952 8/14/1952 Ambrose and Spencer Architects Ventilating Unit Ahwahnee Hotel Lounge A-HVAC-52 1953 3/19/1953 Ambrose and Spencer Architects The Ahwahnee Slate Roof Repairs E1-2 YCS Ahwahnee 1

8/17/1956 G.M. Simonson Consulting electrical and mechanical engineer Remodeling of heating plant E1-2 YCS Ahwahnee 5 A-BOILER36 Ahw Dwg 004

1956 11/12/1956 Eldridge T. Spencer & Wm. Clement Ambrose

Screen fence to replace existing fence between guest parking and service yard

E1-3 YCS Ahwahnee 6 Ahw Dwg 072

1959 4/6/1959 No name Awnings - roller awnings west terrace, stationary awning west terrace

E1-2 YCS Ahwahnee 4 Ahw Dwg 010

1959 4/9/1959 Spencer & Lee Architects Service Bar Ahwahnee dining Room A-SBAR-DETL 1960 10/6/1960 Spencer & Lee Architects Sweet Shop (remodel and reduction) A-SWEET 1960 11/10/1960 Spencer & Lee Architects Ahwahnee terrace pool preliminary study E1-2 YCS Ahwahnee 5 Ahw Dwg 001 1960 New store room for The Ahwahnee 19601101 1960 No date J. D. Spencer Study for outdoor dining in Ahwahnee West loggia E1-3, E6-7 YCS Ahwahnee 6 19530801 Ahw Dwg 067,Ahw Dwg 116, Ahw Dwg 124 1961 5/3/1961 Otis Elevator Company Elevator Shop Drawings A-ELV-E-61 1961 4/21/1961 No name Awning colonial room E1-2 YCS Ahwahnee 2 Ahw Dwg 033, Ahw Dwg 034 1961 6/1961 YP&C Co. landscape department Golf course E1-2 YCS Ahwahnee 1 A.TEN.IGA Ahw Dwg 036, Ahw Dwg 041 1961 6/1/1961 Wes Conner Golf course E1-3 YCS Ahwahnee 14 Ahw Dwg 046 1961 Aug-61 YP&C Co. landscape department Ahwahnee Tennis Courts Grapevine Irrigation 1961 11/1961 No name Ahwahnee Golf Course Kiosk E1-3 YCS Ahwahnee 6 Ahw Dwg 066 1961 No date Otis Elevator Company Elevator control drawings E1-3 YCS Ahwahnee 12 A-ELEV Ahw Dwg 076 to Ahw Dwg 094 1962 10/23/1962 Spencer & Lee Architects 1962 room remodeling (guest rooms) Ahwahnee Hotel E1-2 YCS Ahwahnee 2 Ahw Dwg 030, Ahw Dwg 031 1962 12/29/1962 Spencer, Lee & Busse Architects East Stair Extension E6-7 Ahw Dwg 136 to Ahw Dwg 138 1963 11/14/1963 Spencer & Lee Architects Radiators electrical plan - Ahwahnee Hotel 1963 E1-2 YCS Ahwahnee 4 Ahw Dwg 013 to Ahw Dwg 024 1963 7/1963 No name Grounds lighting west side of building E1-3 YCS Ahwahnee 6 Ahw Dwg 064 1963 11/11/1963 Spencer & Lee Architects 1963 program for reconditioning guest rooms E1-3 YCS Ahwahnee 11 Ahw Dwg 104, Ahw Dwg 105 1963 6/18/1963 J. D. Spencer Terrace wind screen A-WIND 1963 5/24/1963 Spencer and Lee Architects Ahwahnee terrace pool 19630501 104-8284A 1964 7/20/1964 Clyde C. Coats Consultant Air conditioning Indian Room E1-3 YCS Ahwahnee 13 Ahw Dwg 057 1964 8/3/1964 Spencer, Lee & Busse Architects New Balcony Bedroom No 1 Sixth Floor Ahwahnee Hotel A.6FL.BAL-P 1964 9/30/1964 Spencer, Lee & Busse Architects Smokeproof stair tower E1-3 YCS Ahwahnee 11 Ahw Dwg 108, Ahw Dwg 109 1964 12/29/1964 Spencer, Lee & Busse Architects Alteration of storage room east stair from second floor mezz. E1-3 YCS Ahwahnee 11 Ahw Dwg 113 to Ahw Dwg 115 1964 9/30/1964 Spencer, Lee and Busse Architects Smokeproof stair tower E6-7 Ahw Dwg 133, Ahw Dwg 134 1964 1/10/1964 Spencer, Lee and Busse Architects Layout of pool and east stair E6-7 A POOL COMP, AHW-P-

AB

19640101 Ahw Dwg 164 to Ahw Dwg 171

1965 5/1965 NPS branch of Landscape Architecture Parking Area E6-7 19650701 Ahw Dwg 182

E-4

January 2011

Comprehensive List of Drawings in Chronological Order

DNC Scanned files NPS DSC files NPS Drawing #

Year Dwg date Architect or Engineer Description Drawer Folder ARG Photograph No. of Archive Dwgs.

YOSE ArchivesDrawing Information

1965 3/11/1965, 5/8/1965

Spencer, Lee & Busse Architects Stanchion Storage & Torch Rack for Ahwahnee Pool A-POOL-MISC

1966 11/29/1966 Spencer, Lee & Busse Architects Additional to dining room exhaust system (sketch and duct diagram) E1-2 YCS Ahwahnee 2 Ahw Dwg 032

1967 9/7/1967 Spencer & Lee Architects Closet and door details E1-2 YCS Ahwahnee 5 Ahw Dwg 003 1967 1/30/1967 Spencer, Lee & Busse Architects Dry standpipe near smoke tower E1-2 YCS Ahwahnee 4 Ahw Dwg 012 1967 9/23/1967 Spencer, Lee and Busse Architects Exit stair at south wing E1-3 YCS Ahwahnee 11 Ahw Dwg 110 to Ahw Dwg 112 1967 1/30/1967 Spencer, Lee and Busse Architects Dry standpipe near east smoke tower E6-7 Ahw Dwg 132 1968 5/25/1968 YP&C Co. Ahwahnee Hotel Awnings A AWN P 1970 No date Spencer, Lee & Busse Architects, Chamberlain & Painter Consulting Engineers Dry standpipe near smoke tower E1-3 YCS Ahwahnee 11 Ahw Dwg 106, Ahw Dwg 107

1971 8/18/1971 David Jay Flood, AIA, and Associates Ahwahnee Cottages E6-7 Not photographed 1971 8/18/1971 David Jay Flood, AIA, and Associates

11907 San Vicente Blvd.

LA, CA 90049 213-476-6288

New cottage proposal E6-7 Not photographed

1971 11/15/1971 Spencer, Lee & Busse Architects Men's Restroom Lobby Ahwahnee A-MRR-FP-71 1971 1971 United States Department of the Interior, National Park Service, San Francisco Planning and Service Center, Design and Construction Topography/Ahwahnee Hotel Grounds

19710101 104-41090

1975 5/27/1975 NPS Maintenance Management Kessler cottages and Ahwahnee E6-7 104-60016A Ahw Dwg 129 1975 5/28/1975 United States Department of the Interior, National Park Service, Maintenance Management Wawona Cottages & Ahwahnee

19750501 104-60016

1975 6-26-?? Clayton B. Wardle, AIA Kitchen Pot Room Remodel A-KIT-POTRM 1977 3/7/1977 Walter M. Sontheimer Arch, AIA Photo drawings of Ahwahnee exterior E1-2 YCS Ahwahnee 1 Ahw Dwg 042, Ahw Dwg 043 1977 2/23/1977 Walter M. Sontheimer Arch, AIA, and GBA

Gage-Babcock & Associates, Inc. fire protection

Exterior Restoration E6-7 A-EXT-77 19770307 Ahw Dwg 211 to Ahw Dwg 229

1978 May-78 Yosemite National Park, U. S. Department of the Interior, National Park Service

Ahwahnee Hotel/Development Concept 19780501 104-20084

1978 May-78 Yosemite National Park, U. S. Department of the Interior, National Park Service

Ahwahnee Hotel/Development Concept 19780501 104-40084

1978 May-78 Yosemite National Park, U. S. Department of the Interior, National Park Service

Ahwahnee Hotel - No action alternative/existing conditions 19780501 104-40085

1979 4/20/1979 Walter M. Sontheimer Arch, AIA (No title) floor plans A.HOT.FP.79 1979 Nov-79 Yosemite National Park, U. S. Department of the Interior, National Park Service Ahwahnee Hotel/Development Concept 19791101 104-40084A

1980 No date Universal Studios Art Department Indian Room alterations - preliminary drawings E1-2 YCS Ahwahnee 3 Ahw Dwg 025 1981 12/23/1981 YP&C Co. New Ahwahnee Transformer room and Generator A-GEN-AB 1981 1981 No name 1981 As Builts - Wiring A-RMS-E-A 1982 1982 Arco Engineers, Inc. Indian Room Remodel - as builts E6-7 A-IND-AB-82 AHW Bar 19820801 Ahw Dwg 174 to Ahw Dwg 181 1983 5/26/1983 Vantress Design Associates, Inc. Ahwahnee Hotel Sweet Shop Retail E6-7 1984 4/25/1984 NPS Boiler room access E6-7 A-BOL-FP-P Ahw Dwg 172, Ahw Dwg 173 1984 Jul-84 Conley and Freedman Topographic Survey (area to northeast of cottages) AHWTOPO84 1985 1/15/1985 Thompson Architectural Group Study for additional parking E6-7 19850101 Ahw Dwg 147, Ahw dwg 148 1985 1/14/1986 No name Retrofit Domestic Hot and Cold Water A-REPIPE-AB 1985 Mar-85 J. Buckel Yosemite Ahwahnee Hotel Survey 19850301 104-41187

E-5

January 2011

Comprehensive List of Drawings in Chronological Order

DNC Scanned files NPS DSC files NPS Drawing #

Year Dwg date Architect or Engineer Description Drawer Folder ARG Photograph No. of Archive Dwgs.

YOSE ArchivesDrawing Information

1986 8/24/1986 Thompson Architectural Group Guest suites, mezz level remodel E6-7 Ahw Dwg 158, Ahw Dwg 159 1987 87? Roof Systems Engineering Reroof of Ahwahnee Hotel (dining room) E6-7 99991231 Ahw Dwg 183, Ahw dwg 184 1987 12/18/1987 Roof Systems Engineering Proposed alternations entrance walkway canopy E6-7 Ahw Dwg 140 to Ahw Dwg 146 1987 1/13/1987 Thompson Architectural Group Diggins suite remodel E6-7 Ahw Dwg 160, Ahw Dwg 161 1987 9/28/1987 Roof Systems Engineering Phase III and IV reroofing E6-7 19870928 Ahw Dwg 187 to Ahw Dwg 189 1987 12/7/1987 Roof Systems Engineering Porte Cochere re roofing systems E6-7 Ahw Dwg 204 to Ahw Dwg 210 1987 No date Yosemite National Park, U. S. Department of the Interior, National Park Service Ahwahnee Hotel Comprehensive Design 19870201 104-40198

1988 11/14/1988 Roof Systems Engineering Cover Walkway Alterations E6-7 Ahw Dwg 125 to Ahw Dwg 128 1988 1/31/1988 Thompson Architectural Group Service entrance and men's restroom E6-7 Ahw Dwg 149 to Ahw Dwg 151 1988 No date Thompson Architectural Group (No title) Room Furniture Layouts A-RMS-FP-P

8/15/1989 Structcon Engineers The Ahwahnee Hotel Kitchen Floor Repairs - Structural Drawings 1989 9/15/1989 Donald R. Lawrence & Associates, Electrical

Power Systems, Inc.

HVAC and Plumbing Retrofit Project A-HVAC-AB

1989 11/27/1989 Clayton B. Wardle, AIA Sixth floor as built floor plan A-6FL-AB 1990 2/1/1990 Roof Systems Engineering Covered walkway alternates E6-7 A-ROF-C-P Ahw Dwg 190 to Ahw Dwg 195 1990 10/23/1990 Thompson Architectural Group, Donald R.

Lawrence & Associates Parlor Room HVAC and Plumbing Addition A-ACFL-3-P

1992 12/7/1992 Roof Systems Engineering Proposed alternations entrance walkway canopy E6-7 Ahw Dwg 152 to Ahw Dwg 157 1992 12/9/1992 Roof Systems Engineering Specification, reroof of entrance walkway canopy E6-7 19921207 Ahw Dwg 200 to Ahw Dwg 203 1992 10/23/1992 Lawrence Nye Becker Associates Kitchen Vent and Drain A-KIT-VENT-AB 1993 4/15/1993 Roof Systems Engineering Entrance walkway canopy E6-7 19930415 Ahw Dwg 196 to Ahw Dwg 199 1994 1/24/1994 Ed Hardy Letter to superintendent re: sweet shop remodel E6-7 1994 Alternative 2, Ahwahnee Hotel and Campgrounds 99991231 1994 Oct-94 Land and Community Associates with Jones and Jones Architects Ahwahnee Hotel c. 1906-1915 - Landscape Chronology Map from Yosemite Valley CLR

19941001 104-20154 [348542]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel c. 1916-1931 - Landscape Chronology Map from Yosemite Valley CLR

19941001 104-20155 [348543]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Index of Photographic Station Points from Yosemite Valley CLR

19941001 104-20192 [353411]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Response to Natural Features from Yosemite Valley CLR

19941001 104-20186

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Contributing Features from Yosemite Valley CLR 19941001 104-20226

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Land Uses and Activities from Yosemite Valley CLR 19941001 104-20187

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel c. 1932-1945 - Landscape Chronology Map from Yosemite Valley CLR

19941001 104-20156 [348544]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Circulation Systems from Yosemite Valley CLR 19941001 104-20188

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Vegetation Map from Yosemite Valley CLR 19941001 104-20189 [348552]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Study Area Location from Yosemite Valley CLR 19941001 104-20183

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Cluster Arrangements from Yosemite Valley CLR 19941001 104-20190

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel 1993-1994 - Existing Conditions Inventory from Yosemite Valley CLR

19941001 104-20184

E-6

January 2011

Comprehensive List of Drawings in Chronological Order

DNC Scanned files NPS DSC files NPS Drawing #

Year Dwg date Architect or Engineer Description Drawer Folder ARG Photograph No. of Archive Dwgs.

YOSE ArchivesDrawing Information

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Overall Landscape Organization from Yosemite Valley CLR

19941001 104-20185

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Views and Viewsheds from Yosemite Valley CLR 19941001 104-20191 [353410]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel - Landscape Character Ideas from Yosemite Valley

CLR

19941001 104-20225 [348554]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel c. 1946-1972 - Landscape Chronology Map from Yosemite Valley CLR

19941001 104-20157 [348545]

1994 Oct-94 Land and Community Associates with Jones and Jones Architects

Ahwahnee Hotel c.1973-1993 - Landscape Chronology Map from Yosemite Valley CLR

19941001 104-20158 [348546]

1996 11/1/1996 Mead and Hunt topographic survey (CIF 3616) A-TOPO, A-TOPO-AB 1996 May-96 Alternative 2 - The Proposed Action - Ahwahnee Hotel and

Campgrounds 19960501 104-20316

1996 1/16/1996 Page & Turnbull Kitchen Floor Evaluation - Ahwahnee Hotel 19960118 104-D648 [22389]

1997 7/17/1997 Paul Pyle, NPS Ahwahnee grounds base map E6-7 Ahw Dwg 185

1997 Jul-97 Alternative 1 - The Proposed Action - Ahwahnee Hotel and Campgrounds

19970701 104-20274

1997 Jul-97 Alternative 1 - Ahwahnee Hotel and Campgrounds 19970701 104-20281

1997 Alternative 4 - Minimum Requirements - Ahwahnee Hotel and Campgrounds

19970701

1997 Jul-97 Alternative 3 - Ahwahnee Hotel and Campgrounds 19970701 104-20288

1997 2/4/1997 Page & Turnbull Kitchen Floor Repair Ahwahnee Hotel 19970314 104-70136A

1985 7/20/1985 S. Rucker Grease Trap Additions For Y.P.&C.C./Ahwahnee, Lodge, Curry Village

19200701 104-60406 [249704]

No date No name Survey of Ahwahnee area E1-3 YCS Ahwahnee 8 Ahw Dwg 062, Ahw Dwg 063

No date No name Typical room El-3 YCS Ahwahnee 6 Ahw Dwg 069

No date No name Survey of grounds E6-7

Alternative 1 - No Action - Existing Conditions, Ahwahnee Hotel and Campgrounds

99991231

Alternative 3 - Ahwahnee Hotel and Campgrounds 99991231

No date No name Ahwahnee Area 99991231 104-60610

No date No name Ahwahnee (Topographic Map) 99991231 104-60623

No date M. Durant A Comparison of Flora of Ahwahnee Meadow & the Royal Arches Meadow

99991231 104-D779

2005 Documenta Surveys, Peter Borgess As-found Architectural Documentation and CAD-Drawings - Main Building and Cottages

2005 Documenta Surveys, Peter Borgess As-found Artwork Documentation and CAD-Drawings - Murals, Stained Glass, and Stencils

2005 Documenta Surveys, Peter Borgess As-found Façade Stones Outline Documentation and CAD-Drawings

2003 6/13/2003 Martech Associates Inc. Roof and Gutter Replacement at The Ahwahnee Hotel, Yosemite National Park, California

2006 12/1/2006 Architectural Resources Group 90% Draft Construction Documents for The Ahwahnee Hotel Cottages Bathroom Renovations

E-7

January 2011

Comprehensive List of Drawings in Chronological Order

DNC Scanned files NPS DSC files NPS Drawing #

Year Dwg date Architect or Engineer Description Drawer Folder ARG Photograph No. of Archive Dwgs.

YOSE ArchivesDrawing Information

2007 11/30/2007 Architectural Resources Group Construction Documents for Accessibility Improvements, The Ahwahnee Hotel

6/25/2008 Mountain Home Drafting - Courtney Smith Ahwahnee - Reflecting Pond Drawings and cross-sections 2008 10/3/2008 Architectural Resources Group Record Drawings for Accessibility Improvements, The Ahwahnee

Hotel 2/2/2010 Horberger + Worstell, Architects As-Built Drawings for the Ahwahnee

2010 4/21/2010 Architectural Resources Group Construction Documents for Fire and Life Safety Improvements, The Ahwahnee Hotel

70-164

6/4/2010 NPS Approved CE 2010-020 (28707) for Ahwahnee 6th Floor redecoration project. Designed by Kollath McCann.

E-8

Appendix F: Selected Original Historical Drawings, 1926ARCHITECTURAL RESOURCES GROUP

F-1

January 2011

A P P E N DI X F : SE L E C T E D OR IG I NA L H I STOR IC A L

DR AW I NG S , 1 9 2 6

List of Drawings Gilbert Stanley Underwood and Co., Architects and Engineers Los Angeles, California

1A - Basement Floor Plan - Revised 4 December 1926 2A - First Floor Plan - Date illegible 3A - First Floor and Mezzanine Floor Plans - Revised 4 December 1926 4A - Mezzanine Floor Plan - Revised 4 December 1926 5A - Second Floor Plan - Revised 31 December 1926 6A - Second Floor and Th ird Floor Plans - Revised 31 December 1926 7A - Th ird and Fourth Floor Plans - Date illegible 8A - Fift h, Sixth, and Penthouse Floor Plans - 31 December 1926 11A - East Elevation - Date illegible 12A - West Elevation - Revised 4 December 1926 13A - South Elevation - Revised 4 December 1926 14A - North Elevation - Date illegible 15A - Sections and Elevations - Revised 4 December 1926 16A - Section through South Wing - Revised 4 December 1926 17A - Section through Writing Rooms and Lounge - 4 December 1926 18A - Longitudinal Section through Building - Revised 4 December 1926 19A - Interior Elevation - Dining Room - Revised 4 December 1926 20A - Sections - Revised 4 December 1926 26A - Details of Dining Room Truss - Revised 4 December 1926 27A - Detail of Fireplaces and Stair, Solarium and Parlors - Revised 4 December 1926 28A - Fireplace Details - Revised 4 December 1926 29A - Interior Elevations - Revised 4 December 1926 30A - Interior Elevations - Revised 4 December 1926 31A - Interior Elevations - Revised 4 December 1926 34A - Typical Bedroom Plan - Revised 4 December 1926 50A - Details of Loading and Covered Platform - Revised 30 June 1927

A ppendix F: Selected O riginal H istorical D raw ings, 1926

ARCHITECTURAL RESOURCES GROUPAppendix F: Selected Original Historical Drawings, 1926

F-2

1A - Basement Floor Plan - Revised 4 December 1926

F-3

2A - First Floor Plan - Date illegible

F-4

3A - First Floor and Mezzanine Floor Plans - Revised 4 December 1926

F-5

4A - Mezzanine Floor Plan - Revised 4 December 1926

F-6

5A - Second Floor Plan - Revised 31 December 1926

F-7

6A - Second Floor and Th ird Floor Plans - Revised 31 December 1926

F-8

7A - Th ird and Fourth Floor Plans - Date illegible

F-9

8A - Fift h, Sixth, and Penthouse Floor Plans - 31 December 1926

F-10

11A - East Elevation - Date illegible

F-11

12A - West Elevation - Revised 4 December 1926

F-12

13A - South Elevation - Revised 4 December 1926

F-13

14A - North Elevation - Date illegible

F-14

15A - Sections and Elevations - Revised 4 December 1926

F-15

16A - Section through South Wing - Revised 4 December 1926

F-16

17A - Section through Writing Rooms and Lounge - 4 December 1926

F-17

18A - Longitudinal Section through Building - Revised 4 December 1926

F-18

19A - Interior Elevation - Dining Room - Revised 4 December 1926

F-19

20A - Sections - Revised 4 December 1926

F-20

26A - Details of Dining Room Truss - Revised 4 December 1926

F-21

27A - Detail of Fireplaces and Stair, Solarium and Parlors - Revised 4 December 1926

F-22

28A - Fireplace Details - Revised 4 December 1926

F-23

29A - Interior Elevations - Revised 4 December 1926

F-24

30A - Interior Elevations - Revised 4 December 1926

F-25

31A - Interior Elevations - Revised 4 December 1926

F-26

34A - Typical Bedroom Plan - Revised 4 December 1926

F-27

50A - Details of Loading and Covered Platform - Revised 30 June 1927

F-28