Original electrical trade vintage catalog for JOHN A. ROEBLING'S SONS COMPANY of Trenton, NJ. Manufacturers of electric wire, cable, bare copper and stranded conductors, trolley and magnet wires, grades of rubber insulating compounds, building wires, power cables, fittings, constructions, coverings, zinc coated telephone and telegraph wire, cold rolled copper strip are featured. Disbound from a large 1944 electrical construction materials book, this unique old twenty four page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library. Pages detached and contains a small amount of residual glue on edge.