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"Hagelin B-21" Cyper Machine, 1927 onwards...
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"Cryptograph" Cypher Machine by Sir Charles W...
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Transvertex HC-9 Cypher Machine, c. 1955...
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Telephone Cyphering Device, c. 1980...
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Czech Transceiver by Tesla, c. 1950...
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Ciphering Machine Enigma K-Model with Additio...
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Cryptographic Equipment ...
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"Enigma M4" Cypher Machine, c. 1942...
