Original window trade vintage catalog for NATIONAL DOOR MANUFACTURERS ASSOCIATION, INC. Main office was located in Chicago, IL. Manufacturers of Window Frames, Sash, and Doors. Topics discussed include Advantages, specs, details, fire tests on wood doors by George C. McNaughton and T.J. Martin. Unbound from a large 1941 architectural catalog, this unique old sixteen page technical brochure would display wonderful matted and framed. Nice cover graphics. A fabulous addition to your retro window & door construction library. Pages are detached and may contain a small amount of residual glue on edge. Disbound from a large 1941 construction book, these unique sixteen page technical data specifications sheets contain a small amount of residual glue, and pages are loose. It would make a sensational addition to your architectural engineering library.