Original industrial trade vintage catalog for SKF INDUSTRIES, INC. was located at Front Street and Erie Avenue, Philadelphia, PA. Manufacturers of ball and roller bearings, preferred for all electrical equipment. The efficiency of equipment has been multiplied manyfold by ball and roller bearings. SKF bearings assure continuous, smooth running operation. Disbound from a large 1948 electrical construction materials book, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library.