Original industrial trade vintage catalog for GRANT GEAR WORKS, INC. was located in Boston, MA. Manufacturers of Standardized Cut Gears, Special, Speed Reducers, Pinions, Silent and Roller Chain Drives. Bevel, Racks in Steel, Brass, Cast Iron, Worm Gear and Sprockets. Disbound from a large 1931 industrial catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro industrial equipment library. Slight damp stain on outer edge.