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  • M-209 Converter Encryption Machine Revised TM 11-380

    5x8" 90 Pages M-209 Converter Encryption Machine Technical Manual 1944 Revised EditionDesigned by Swedish cryptographer Boris Hagelin, the M-209 Converter was a portable, mechanical cipher machine. Used extensively during...

    $15.95 $10.95

  • M-209 Converter Encryption Machine TM 11-380

    5x8" 40 Pages M-209 Converter Encryption Machine Technical ManualDesigned by Swedish cryptographer Boris Hagelin, the M-209 Converter was a portable, mechanical cipher machine. Used extensively during WWII and the Korean...

    $13.95 $8.95