Synopsis of signal systems based upon dot and dash and 2-arm semaphore codes.

Bibliographic Details
Corporate Author:	United States. Marine Corps
Format:	Government Document eBook
Language:	English
Published:	Washington : U.S. GPO, 1917.
Series:	N.M.C. No. 701
Subjects:	United States. > Marine Corps. Ciphers. Signals and signaling. Electronic books.
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