Original hardware trade vintage catalog for NATIONAL METAL PRODUCTS COMPANY. Was located in Carnegie, PA. Manufacturers of threshold, weatherstrip for doors, casement and double hung windows, kick and push plates, steel lintels and dampers. Extruded from specially engineered and designed dies, sturdily made to withstand extreme abuse and heavy traffic. Subsidiary of Carolina Metal Company. This unique 1958 old eight page technical brochure would make a marvelous addition to your retro architectural design collection. Pages are loose and contain a tiny amount of residual glue on edge.