Original plumbing trade vintage catalog for GENERAL CERAMICS COMPANY. Main office was located at 30 Rockefeller Plaza, New York City, NY. Manufacturers of Acid-Proof Chemical Stoneware. Chemistry and Physics Laboratory Equipment in Educational and Research Institutions, for General Industrial Chemical Purposes, for Hospitals, Electro-Plating Plants, Newspapers, Photo-Engraving Shops and other establishments where corrosive fluids are used. Lab sinks, drain lines, fittings. Granite-like material with an attractive glazed surface. Unbound from a large 1938 architectural catalog, this unique old one page technical brochure would display beautifully matted and framed. A fantastic addition to your retro plumbing collection.