Original elevator trade vintage catalog for ECONOMY ENGINEERING COMPANY. Main office and factory was located at 2667 West Van Buren Street, Chicago, IL. Manufacturers of Portable Elevators, Lifters, Storage Racks and Stackers. Ball Bearing Equipment. Disbound from a large 1931 elevator construction materials book, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro elevator equipment library. Slight damp stain on outer edge.