Original electrical trade vintage catalog for AUTOMATIC SWITCH COMPANY.  Main office and factory was located at 41 East 11th Street, New York City, NY.

Manufacturers of remote control and automatic transfer switches, contactors, relays and solenoid valves. The mechanically held, electrically operated automatic transfer switches are designed to automatically transfer a load from a normal service to an emergency service on failure or reduction in voltage of the normal service. Special features such as delayed operation, manual reset, engine starting contacts and other auxiliary controls are available.

Disbound from a large 1942 architect construction materials book, this unique old two-page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electrical equipment library. Pages are loose and contains a small amount of residual glue on edge.