Original classroom trade vintage catalog for AYWON WIRE METAL CORPORATION. Main office was located at 745 64th Street, Brooklyn, NY. Manufacturers of Chalkboards containing asbestos by Johns Manville, also Masonite Tempered, and US Gypsum Structo-Board used. Gold Seal Bulletin Board Cork, rugged construction, easy maintenance. Porcelainite 18 gage, Ceramite porcelain 24 gage chalkboards manufactured. Clip-Tite, Thread-Tite aluminum trims, Reddi-frame prefabricated boards full size details provided. Vertical and horizontal sliding chalkboards are also shown. This unique 1964 old twelve page architect brochure would make a marvelous addition to your retro design and engineering library. Pages are loose and contain a small amount of residual glue on edge.