Original classroom trade vintage catalog for WEBER COSTELLO COMPANY. Main office was located in Chicago Heights, IL. Manufacturers of Chalkboards containing asbestos used in classrooms and other installations. Sterling and Crownbest cement asbestos chalkboards, Hyloplate made of wood fiber, Crownprest of hardboard and Metalsite of steel. Alpha-Trim 400 series units, Monarch J units, and trim specifications, installation provided. Tackboard material of cork and vinyl listed. This unique 1964 old eight page architectural brochure would make a marvelous addition to your retro design and engineering collection. Pages are loose and contain a small amount of residual glue on edge