Original heating trade vintage catalog for EMERSON ELECTRIC MANUFACTURING COMPANY. Main office was located in St. Louis, MO. Manufacturers of home cooler fans, kitchen ventilators and exhaust fans. Specs for architects, builders, contractors. Selecting proper size fan, discharge openings in attic, location of attic fan, types of installation, other installations, home cooler fans and accessories for attic, dimensions for home cooler fans and accessories, junior ventilators for kitchens, laundries, bathrooms dimensions and installation. Disbound from a large 1954 home builders heating catalog, this unique old eight page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro heating equipment library. Pages are detached and may contain a small amount of residual glue on edge.