Original window trade vintage catalog for METALLIC SASH OPERATOR COMPANY. The main office and factory was located at 23rd and Chestnut Streets, St. Louis, MO. Manufacturers of Geared Sash Operators, used to control any style or arrangement of solid steel, sheet metal or wood sashes. Style 9, 4, 1, and 3 are pictured. Unbound from a large 1916 architectural catalog, this unique old one page technical brochure would display wonderful matted and framed. Nice graphics. A fabulous addition to your retro windows library. Page is detached and may contain a small amount of residual glue on edge.