Original electrical trade vintage catalog for THE BELL TELEPHONE SYSTEM. Planning commercial buildings and high-rise apartments, describes the installation of complete telephone wiring. Teletypewriter, data transmission, Centrex, and public telephone service are discussed and illustrated. Disbound from a large 1964 architect construction book, this unique old eight page technical brochure would make a marvelous addition to your retro telecom equipment library. Contains a small amount of residual glue on edge.