Original heater trade vintage catalog for RAY BURNER COMPANY, was located at 401 Bernal Avenue, San Francisco, CA. Manufacturers of Oil-Burner Equipment, Angular Vane Nozzle, Midget Model. Suitable for industrial, commercial, marine and domestic use. Disbound from a large 1931 industrial catalog, this unique old one page technical brochure would display beautifully matted and framed. A marvelous addition to your retro heating equipment library. Slight damp stain on outer edge.