Original furniture trade vintage catalog for SOUTHERN STEEL COMPANY. Main office was located at 4634 South Presa Street, San Antonio, TX. Manufacturers of Jail Prison Equipment, used at the Riker's Island Penitentiary in New York City, Sloan & Robertson, Architects. Proven automatic all-electric and all-mechanical combination system, coverts from fully selective electric to fully selective mechanical operation in seconds. Intermittent gear locking and operating system. the only fully automatic cell door indicator system, operates both electrically and manually. Disbound from a large 1964 jail equipment catalog, this unique old eight page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro furniture library. Pages are detached and may contain a small amount of residual glue on edge.