Original electrical trade vintage catalog for ALLIS-CHALMERS MANUFACTURING COMPANY of Milwaukee, WI. Manufacturers of Power generation equipment, distribution, control regulators. D-51. Discussed and photographed are steam and hydraulic turbines, turbo and engine type generators, condensers and auxiliaries, pumps, water conditioning, motors, motor control, switchgear, circuit breakers, transformers and unit substations. Disbound from a large 1952 architect construction materials book, this unique old twenty four page technical specifications brochure would make marvelous addition to your retro electrical equipment library. Contains a small amount of residual glue on edge.