Original glass trade vintage catalog for PITTSBURGH PLATE GLASS COMPANY, Main office was located in Pittsburgh, PA. Manufacturers of Glass Products. Guide List and Products in the form of a chart, US Government specifications for Plate Glass for Glazing Purposes. Vista Plate Glass, Heavy Plate Glass, Blue and Flesh Tinted Plate Glass, Crystalex Plate Glass, Solex, Herculite, X-Ray Lead and Safety Glass. Disbound from a large 1938 industrial glass catalog, this unique old twelve page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro glass library. Pages are detached and may contain a small amount of residual glue on edge.