INFO:

National Archives and Records Administration

INTERNATIONAL MORSE CODE, HAND SENDING

Department of Defense. Department of the Army. Office of the Chief Signal Officer. (09/18/1947 - 02/28/1964)

ARC Identifier 36813 / Local Identifier 111-TF-3697. PRINCIPLES AND BASIC TECHNIQUE FOR GOOD, RHYTHMIC SENDING 0F MORSE CODE BY OPERATING THE HAND KEY.

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