Original electrical trade vintage catalog for BENJAMIN ELECTRIC MANUFACTURING COMPANY of Des Plaines, IL. Manufacturers of Industrial lighting and floodlighting equipment. Included are RLM stream-flo, Twin-flo, shield-flo, type TX-40 fluorescent units, turnlox, explosion proof, vapolets and more. Disbound from a large 1948 architect construction materials book, this unique old four page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electrical equipment library. Pages are loose and contains a small amount of residual glue on edge.