Original flooring trade vintage catalog for AIR-LITE GRATING COMPANY, was located at 13035 Hillview Avenue, Detroit, MI. Manufacturers of Stair Treads and Grating. Spec Tables of Safe Loads provided. Vulcan Iron & Wire Works. Disbound from a large 1938 floor materials catalog, this unique old one page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro flooring construction library.