Original industrial trade vintage catalog for D. O. JAMES MANUFACTURING COMPANY. Main office was located at 1114 West Monroe Street, Chicago, IL. Manufacturers of motorized worm gear, speed reducers, cut gears, racks and flexible couplings. Disbound from a large 1936 industrial catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro industrial equipment library.