Original window trade vintage catalog for THE A. W. BARNHART COMPANY, INC. Main office and factory was located at 140 Highland Street, Port Chester, NY. Manufacturers of detention screens for hospital & sanitarium windows & porches. Maximum, Medium and Safety Detention Units. Pictured is the Trulock screens installed at the Naval Medical Center in Bethesda, MD. All-Aluminum heavy extruded constructed tubular Detention Screen of 6061 T-6 rigidly heat treated alloy immune to urine. Only Trulock brings you the patented shock distributing mechanism that has been specified by architects and heads of mental institutions since 1939. Medium units of aluminum or steel frames for use when less than maximum is acceptable. Tremendous strength when needed, beautiful appearance. Numerous images, illustrations and architect specifications are provided. Unbound from a large 1958 architectural catalog, this unique old four page technical brochure would display wonderful matted and framed. Nice cover graphics. A terrific addition to your retro window library. Pages are detached and may contain a small amount of residual glue on edge.