Original plumbing trade vintage catalog for WALLACE & TIERNAN COMPANY, INC. Main office and factory was located in Newark, NJ. Manufacturers of Chlorine Control Equipment for Water and Sewage Purification, Swimming Pool Sterilization and Industrial Processes. Products include MSV Vacuum Control Solution Feed, ASV, MSP, Chloro Clock, Chloromter, Scale. Unbound from a large 1931 architectural catalog, this unique old one page technical brochure would display beautifully matted and framed. Nice graphics. A fantastic addition to your retro plumbing collection. Slight damp stain on outer edge.