Original electrical trade vintage catalog for ALLIS-CHALMERS MANUFACTURING COMPANY of Milwaukee, WI. Manufacturers of power equipment control, generation, and distribution. 25B6150-C. Steam, hydraulic, engine and auxiliary generations, transformers, regulators, substations, circuit breakers, switchgear, voltage regulation, and motor control are listed. Disbound from a large 1951 architect construction materials book, this unique old twenty eight page technical specifications brochure would be marvelous addition to your retro electrical equipment library. Contains a small amount of residual glue on edge.