Original metal trade vintage catalog for THE PETROLEUM IRON WORKS COMPANY, main office and works was located in Sharon, PA. Manufacturers of Steel Plate, Tanks, Pressure Vessels, Cars and Shipping Barrels. Unbound from a large 1931 engineering catalog, this unique old one page technical brochure would display beautifully matted and framed. A fantastic addition to your retro metal library. Slight damp stain on outer edge.