Original roofing trade vintage catalog for NATIONAL VENTILATING COMPANY. General office and factory was located at 75 Tenth Street, Long Island City, NY. Manufacturers of Puttyless Skylights. Products include Multi-Unit Puttyless Skylights for railway terminals, power stations, machine shops, factories, foundries, libraries, museums and art galleries. Used by the Pennsylvania Railroad Company in its New York City passenger station, by the New York Central Railroad Company on its Grand Central Terminal, in the United States Navy Yard at Washington, DC and Norfolk, VA. Unbound from a large 1931 architectural catalog, this unique old one page technical brochure would display beautifully matted and framed. A wonderful addition to your retro roofing construction library. Slight damp stain on outer edge.