Original door trade vintage catalog for VISUMATIC CORPORATION. was located at 885 Sheffield Avenue, Brooklyn, NY. Manufacturers of automatic door closers and operators. Reliability in controls. No. 100. So great has the demand become for automatic door controls in supermarkets, restaurants, hospitals, banks and other commercial, public and industrial buildings that more architects and engineers include them in their initial plants for new structures. Features, component parts, suggested configuration and specifications are provided. This unique 1958 old four page technical brochure would make a marvelous addition to your retro architecture library. Pages are loose and contain a tiny amount of residual glue on edge. Catalog N-102