Original classroom trade vintage catalog for RADIO CORPORATION OF AMERICA. Audio-visual products division was located in Camden, NJ. RCA. Manufacturer of Preceptor Language Laboratory. Specifications and detailed equipment description provided. Basic requirements, functions provided, equipment list, typical layout for 30 booth lab. This unique 1964 old eight page architectural brochure would make a marvelous addition to your retro designing library. Pages are loose and contain a small amount of residual glue on edge.