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Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania - NARA - 31488992.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania - NARA - 31488994.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. One room for examination of glass from the pot - NARA - 31489000.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania - NARA - 31489002.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania - NARA - 31489006.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania - NARA - 31489010.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. Optical stand best blast room - NARA - 31489012.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. Optical Batch room. There were 8 pot arhes and 12 one pot arches devoted exclusively to the o(...) - NARA - 31489004.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. individual pot arches and stone arch, where the pots are heated before using. These pots are (...) - NARA - 31488976.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. Pneumatic presses where the pieces of glass were heated until soft and pressed to the desired(...) - NARA - 31488996.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. Hydraulic presses where the large pieces of glass were sent - NARA - 31488998.jpg - US National Archives bot

Industries of War - Glass - GLA SS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. Auxiliary pot storage room. Nc.2 Casting Hall, where the stock is stored - NARA - 31489008.jpg - US National Archives bot

Industries of War - Glass - USING WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. Blast furnace repair shop of Ford Motor Co., River Rouge, Detroit, Michigan - NARA - 31488978.jpg - US National Archives bot

Industries of War - Glass - USING WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. Bunting brass & Bronze CO. foundry, Toledo, Ohio, made almost entire of glass manufactured by Pennsylvania (...) - NARA - 31488982.jpg - US National Archives bot

Industries of War - Glass - USING WIRE GLASS A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. Firestone Tire & Rubber Co., Plant Number 2, Akron, O. Glass manufactured by Pennsylvania Wire Glass Co., Ph(...) - NARA - 31488986.jpg - US National Archives bot

Industries of War - Glass - USING WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. Electric storage battery building, Philadelphia, Pennsylvania. Glass manufactured by Pennsylvania Wire Glas(...) - NARA - 31488988.jpg - SteinsplitterBot

Industries of War - Glass - USING WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECED DURING THE WAR. Pullman Co. forge shop, Pullman, Ill. Glass manufactured by Pennsylvania Wire Glass Co., Philadelphia, Penns(...) - NARA - 31488990.jpg - US National Archives bot

Industries of War - Glass - USING WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. McAdamite Aluminum factory, Detroit, Michigan. Glass manufactured by Pennsylvania Wire Glass Co., Philadelp(...) - NARA - 31489014.jpg - US National Archives bot

Industries of War - Glass - USING CORRUGATED WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. First "all-glass" building every erected by Pennsylvania Wire Glass Co. at their plant at Dunbar(...) - NARA - 31489018.jpg - US National Archives bot

Industries of War - Glass - USING CORRUGATED WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. First "all-glass" building ever erected; Boiler House erected by Pennsylvania Wire Glass Co. at (...) - NARA - 31489020.jpg - SteinsplitterBot

Industries of War - Glass - USING CORRUGATED WIRE GLASS A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. Corrugated wire glass. First "all-glass" building ever erected. Note absence of glare and shadow - NARA - 31489022.jpg - US National Archives bot

Industries of War - Glass - USING WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. Core building of International Harvester Co., Milwaukee, Wisconsin. Glass manufactured by Pennsylvania Wire(...) - NARA - 31488984.jpg - US National Archives bot

Industries of War - Glass - USING WIRE GLASS, A PRODUCT OF THE WAR, IN BUILDINGS ERECTED DURING THE WAR. Use of glass in Pond Truss Foundry of Niles Tool Works Co., Hamilton, O. Glass manufactured by Pennsylvania - NARA - 31488980.jpg - US National Archives bot

Industries of War - Glass - GLASS MANUFACTURED FOR GOVERNMENT BY PITTSBURGH PLATE GLASS CO., PITTSBURGH, Pennsylvania. Optical glass laying yard where the glass was laid in frames to await the grinding and polishing - NARA - 31489016.jpg - US National Archives bot