Original heating trade vintage catalog for UNITED STATES REGISTER COMPANY, was located in Battle Creek, MI. Manufacturers of Air Conditioning Registers, open and close space, fixed and adjustable directional flow. Horizontal bar, vertical, perforated metal grilles and Governair. Disbound from a large 1938 home builders heating catalog, this unique old three page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro heating equipment library.