Original heating trade vintage catalog for AMERICAN BLOWER CORPORATION, General office was located in Detroit, MI. Manufacturers of Sirocco Fans, Heaters, Mechanical Draft Equipment. Heating, Ventilating, Cooling, Purifying, Humidifying, Drying, Fans and Blowers for all Purposes, Vertical Self-Oiling Steam Engines, Traps, Dust Collector, Venturfin Heaters and Ventura Disc Fans. Disbound from a large 1931 industrial catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro industrial equipment library. Slight damp stain on outer edge.