Original window trade vintage catalog for DETROIT STEEL PRODUCTS COMPANY. Main office and plant was located at 2208 East Grand Boulevard, Detroit, MI. Manufacturers of Fenestra windows, sash, casements, hinged doors, and portable partitions. Topics discussed are the adaptability, mechanical construction, butts, and gravity cam latch. Unbound from a large 1916 architectural catalog, this unique old two page technical brochure would display wonderful matted and framed. Nice graphics. A terrific addition to your retro window library. Pages are detached and may contain a small amount of residual glue on edge.