Original electrical trade vintage catalog for THE KIRK & BLUM MANUFACTURING COMPANY, was located at 2868 Spring Grove Avenue, Cincinnati, OH. Manufacturers of custom built enclosures for electrical controls. Units of sheet steel and light plate, stainless, aluminum, monel and other alloy fabrication. Parts and assemblies made to exact specifications. Shown is ultra modern control panels for Supersonic Tunnel for National Advisory Committee for Aeronautics, gauge board for Altoona Dam project, control desk for Mitchill Power Station, West Penn Power Company. Disbound from a large 1949 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.