Overview The Edward Lord collection on Rochester Tel-Com Association of the Deaf (RTCAD) contains fifteen directories created by RTCAD for 1982-1996, and a RTCAD banner.

Overview The collection includes Harry Lang's research papers on inventor of the TTY, Robert Weitbrecht, as well as videotapes of interviews conducted by researcher Harry Lang for his book about the history and development of the TTY, communication device for the deaf and hearing impaired, A Phone of Their Own: The Deaf Insurrection Against Ma Bell,Washington, D.C.: Gallaudet University, 2000. There are also two typescripts of an early version of From...

Overview The Robert H. Weitbrecht James C. Marsters TTY modem collection contains two metallic boxes with electronic circuitry inside that made up the acoustic telephone coupler (now known as a TTY modem) used by Dr. James C. Marsters in the first TTY telephone call between two deaf persons (May 1964).