Original heating trade vintage catalog for UNO VENTILATOR COMPANY. Main office and works was located at Clifton Station, Saugus, MA. Manufacturers of Electric Welded Ventilators. Products include standard turbine, motorturb, rotohood, flue doctor and arrow stationary. Unbound from a large 1938 architectural catalog, this unique old one page technical specifications brochure would display beautifully matted and framed. Nice graphics. A marvelous addition to your retro roof ventilation equipment library.