Original 1939 electrical trade vintage catalog for the JOHN A ROBLING'S SONS COMPANY.  

Manufacturers of Insulated Electrical Wires and Cables.

Has product images, description, applications and specifications to provide product details.

Unbound from a large rare 1939 Process Industries Catalog, this unique old four-page technical brochure would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro electrical equipment library. Pages are loose.