Original plumbing trade vintage catalog for GRINNELL COMPANY, INC. Executive office was located in Providence, RI. Manufacturing of Welding Fittings and Piping Material. Prefabricated all types of welds, elbows, returns, tees, outlets, reducers and neck flanges. Unbound from a large 1938 architectural catalog, this unique old two page technical brochure would display beautifully matted and framed. A fantastic addition to your retro industrial plumbing collection.