Radio devices on ships, Southern California, 1930

4 photographs of radio devices on airplanes, Transcontinental Air Transport Incorporated, Maddux air lines, Southern California, 1930. "Subject: Radio devices on ships

19308202DW1930031182DW193003118202Radio Receivers and receptionAirplanesMenTranscontinental Air Transport IncorporatedMaddux Air LinesHoulihanJoe