Original wall trade vintage catalog for UNITED STATES GYPSUM COMPANY. Main office was located at 101 South Wacker Drive, Chicago, IL. Manufacturers of Drywall, Wood Frame Systems. They are lightweight, quickly erected, fire-rated walls and ceilings with excellent sound attenuation. Numerous images, illustrations, test data for partitions & walls, ceilings, detailed product descriptions and technical data and details. Architect specifications provided. Unbound from a large 1982 architectural catalog, this unique old twelve page technical brochure would display wonderful matted and framed. A terrific addition to your retro wall construction library. Pages are detached and may contain a small amount of residual glue on edge. (system folder SA-924).