Original heating trade vintage catalog for NATIONAL AIROIL BURNER COMPANY, was located at 1134 East Sedgley Avenue, Philadelphia, PA. Manufacturers of oil and gas burners, burning equipment for every use. SAL, MA and MAL. Disbound from a large 1936 industrial heating catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro heating equipment library.