Original heating trade vintage catalog for MAY OIL BURNER CORPORATION. General office and factory was located in Baltimore, MD. Manufacturers of the Quiet Heat-an-Aire Air Conditioner Series 4, Oil Furnace Heater and the Oil Burner. 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.