National Radio Company wireless telephone receiver and transmitter, ca. 1918

This wireless telephone receiver and transmitter, with generator on the floor, was produced by National Radio Company. The telephone was designed by William W. Hanscom, consultant and chief engineer to National Wireless Telephone & Telegraph, later the National Radio Company, between 1914 and 1919. Originally the Ignatius McCarty Company, the National Radio Company was based in San Francisco, California. The Perham Collection includes many photographs of National Radio Company products and workshops, as well as archival materials regarding William Hanscom and the National Radio Company.