Original wall trade vintage catalog for THE DUPLEX HANGER COMPANY. Main office and factory was located at East 53 Street and Lakeside Avenue, Cleveland, OH. Manufacturers of Wood Duplex Post Caps and Bases. For warehouses, factories, heavy mill construction and all other wood constructed buildings. The quality line for heavy mill construction. Unbound from a large 1938 architectural catalog, this unique old one page technical brochure would display wonderful matted and framed. Nice graphics. A terrific addition to your retro wall construction library.