Original flooring trade vintage catalog for JNO. T. McCOY, INC. Main office was located at 551 Fifth Avenue, New York City, NY. Manufacturers of Structural Hollow Clay Tile Floor and Roof. Nassau One-Way Hollow Tile Floors developed by Elwyn E. Seelye, prominent structural engineer. Used in the New Nassau Tavern, 8 apartment buildings and the Play House at Princeton, NJ, Thomas Stapleton, Architect. Disbound from a large 1938 floor materials catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro flooring construction library. John T McCoy.