Etzel Collection, Code, Cryptography - Instruction Brochure
01.01.1937 - 31.12.1948
Reference Code : K 4 - 18/ 20
Archive:
Etzel Collection
Material status:
Scanned
Date Type:
Approximate
Attachments
k4\4\109801.pdf
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Description
Pamphlet of codes and secret writings. Chart of information classification
in code. Code book. Lists of translations and notices in code.