Signal Corps - Phila 43
This U.S. Army Signal Corp unit was used operationally during WW II to train radio operators in Morse code communications. Morse signals were recorded in ink on paper tape for playback.
Signal Corps - Phila 43
This U.S. Army Signal Corp unit was used operationally during WW II to train radio operators in Morse code communications. Morse signals were recorded in ink on paper tape for playback.
