Original electrical trade vintage catalog for ROLLER-SMITH COMPANY, of Bethlehem, PA. Manufacturers of air and oil circuit breakers, instruments and control switches, switchgear. A horizontal drawout oil breaker metal clad switchgear installed by City of Memphis is pictured. Disbound from a large 1943 electrical construction materials book, this unique old one page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library.