William F. Friedman NSA Archive - Guidelines for Security Classification, 1955; Open Source Mention of Use of Electronic Computers In Cryptography, 1957; Crypto-Mathematics Institute Bulletin, September 1958

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Files W.F.F. Archive Patent and Equipment Records Guidelines for Security Classification, 1955; Open Source Mention of Use of Electronic Computers In Cryptography, 1957; Crypto-Mathematics Institute Bulletin, September 1958

Building A Who's Who File on Members of the Crypto-Mathematic Institute

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Crypto-Mathematics Institute Bulletin

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Guide Lines for Security Classifications; Appendix to NSA Reg 121-7 Dtd 8 April 1955

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Letter of Appreciation Forwarded by the Naval War College to Adm. Stone

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108.83 KiB

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Open Source Mention of Use of Electronic Computers In Cryptography

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265.56 KiB

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