Original roofing trade vintage catalog for MITCHELL-TAPPEN COMPANY. Main office was located at 15 John Street, New York City, NY. Manufacturers of Standardized Metal Caging. Securely anchored and locked to beam flange, protected from fire or corrosion by 2 inches of concrete. Used on New York Life Insurance Company Building, New York City. Cass Gilbert, Architect. Buildings for Duke University, Hudson River Vehicular Tunnel, New York and Connecting Railway Viaduct, Long Island City, NY. Unbound from a large 1931 architectural catalog, this unique old one page technical brochure would display beautifully matted and framed. Nice graphics. A wonderful addition to your retro roofing construction library.