Original electrical trade vintage catalog for I-T-E CIRCUIT BREAKER COMPANY. Main office and factory was located at 1890 Hamilton Street, Philadelphia, PA. Manufacturers of Klamp-tite switches, switchgear, multumite switchboards and circuit breakers. Shown is type LX, Itelite, K type, automatic reclosing, knife switches, and 2300 volt switchgear. Inverse Time Element, the basic principle upon which these circuit breakers have been built from the beginning. Disbound from a large 1943 electrical construction materials book, this unique old two-page gatefold technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library. Pages are loose and contains a small amount of residual glue on edge.