Original electrical trade vintage catalog for THE NATIONAL ACME COMPANY, was located at 170 East 131 Street, Cleveland, OH. Manufacturers of Heavy-Duty Snap-Lock control station switches, solenoids. Heavy duty switch to end your troubles once and for all. The one basic units has separate enclosures for both mechanical and electrical sides. Disbound from a large 1944 electrical construction materials book, this unique old one page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library.