Original electrical trade vintage catalog for OLIVER IRON & STEEL CORPORATION, was located on South Tenth at Muriel Streets, Pittsburgh, PA. Manufacturers of pole line hardware. Fittings, anchoring, guying, grounding material, braces and crossarms. Approved and accepted by utility and telephone companies everywhere. Disbound from a large 1952 electrical construction materials book, this unique old two page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library.