Original window trade vintage catalog for UNIQUE BALANCE COMPANY, INC. Main office and factory was located at 296 East 134th Street, New York City, NY. Manufacturers of Counterbalance Window Sash. Products include Type B, C and Weatherstrip is featured. Unbound from a large 1938 architectural catalog, this unique old one page technical brochure would display wonderful matted and framed. Nice graphics. A fabulous addition to your retro window sash balance library. Pages are detached and may contain a small amount of residual glue on edge.