espionage, code, decoding of a postage stamp with cutted edges during the 1st world war, 1914 - 1918, Additional-Rights-Clearance-Info-Not-Available

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Additional-Rights-Clearance-Info-Not-Available

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Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1910s, 20th, activity, agent, agents, century, cipher, code, codes, codification, coding, codings, cryptography, cutted, decoding, edges, encoding, encodings, encryption, espionage, historic, historical, identification, identifier, identifiers, postage, secret, service, sign, stamp, stamps, teeth, tooth, war, wars, world, wwi