Original electrical trade vintage catalog for P. R. MALLORY & COMPANY, INC. was located in Indianapolis, IN. Manufacturers of electrical contacts, capacitors, resistance welding electrodes, switches, rectifiers, special non-ferrous alloys and contact assemblies for the industry. Supplier of all types of contacts from heavy-duty for circuit breakers and industrial controls to the tiniest contacts for relays, instruments and electronic equipment. Disbound from a large 1948 electrical construction materials book, this unique old four page technical specifications brochure would display wonderfully matted and framed. A marvelous addition to your retro electric equipment library. Pages are detached and contains a small amount of residual glue on edge.