Original electrical trade vintage catalog for THE SPENCER THERMOSTAT COMPANY.  Main office and plant was located Attleboro, MA.

Manufacturers of Klixon, Snap-acting Controls. Products include Motor Protectors, Automotive Circuit Breakers, Aircraft Circuit Breakers and Protectors, and Electronic and Miscellaneous Controls. Has numerous product images with detailed descriptions, uses, applications, dimensions and specifications data provided. Unbound from a large wartime 1945 engineering designer catalog, this unique old four page technical brochure would display beautifully matted and framed. Nice cover graphics. A fantastic addition to your vintage electrical control library.