Original industrial trade vintage catalog for CENTRAL VALVE MANUFACTURING. COMPANY. Main office and factory was located at 233 East 95th Street, Chicago, IL. Manufacturers of Perfection Replate, Special Valves, Self-Grinding, Special Styles and Gate. Disbound from a large 1931 industrial catalog, this unique old one page technical brochure would display wonderfully matted and framed. A marvelous addition to your retro industrial equipment library. Slight damp stain on outer edge.