Original metal trade vintage catalog for APOLLO METAL WORKS. Main office was located in La Salle, IL. Manufacturers of Chrom, corrosion resistant, by electrically depositing, on hard rolled zinc, a plate of copper, nickel and chromium. For domestic and commercial uses. Attractive meat market showing practical utility of Chrom. 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.