Original electrical trade vintage catalog for AMERICAN GAS ACCUMULATOR COMPANY. Main office and factory was located at 1029 Newark Avenue, Elizabeth, NJ. Manufacturers of Agastat time delay relays, made in two basic types. Made for continuous duty for both AC and DC service. Disbound from a large 1952 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.