Original industrial trade vintage catalog for POWER PIPING COMPANY, general office and works was located at 829 Beaver Avenue, Pittsburgh, PA. Industrial Piping Engineers. Complete piping systems designed, constructed, assembled and erected, special welded equipment. Pictured is an aerial condenser for the Craig Oil Company, of Toledo, OH. Disbound from a large 1931 industrial catalog, this unique old two page technical brochure would display beautifully matted and framed. A marvelous addition to your retro industrial equipment library. Slight damp stain on outer edge.