Original electrical trade vintage catalog for CANNON ELECTRIC DEVELOPMENT COMPANY. Main office and factory was located at 3209 Humboldt Street, Los Angles, CA. Manufacturers of Multi-contact connectors, DC solenoids, signal equipment and electrical specialties. Division of Cannon Manufacturing. Disbound from a large 1951 architect construction materials book, this unique old one page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electrical equipment library.