1 option
Pocket signal disk : Ephemera 1941-1945.
- Format:
- Book
- Language:
- English
- Physical Description:
- 1 online resource
- Summary:
- Description: U.S. service issue pocket signal disk for instruction in the General Service, or International Morse and Semaphore Signal Codes. Includes the International Flag Code and Special Flags and Pennants.
- Notes:
- Description based on online resource (viewed on June 12, 2019).
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