Original electrical trade vintage catalog for DIEHL MANUFACTURING COMPANY, was located in Elizabethport, NJ. Manufacturers of motors, generators and ventilating equipment. AC general purpose, slip ring wound rotor induction, shaftless, gear, textile, sewing machine, totally enclosed chemical plant and motor-generator sets. Electrical division of the Singer Manufacturing Company. Disbound from a large 1936 electrical construction materials book, this unique old twelve page technical specifications brochure cover 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.