Declassification of Document

Document A58143

28.89 KiB

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Declassification of Document; Exchange Between NSA AG and Office of COMSEC

Document A58142

41.55 KiB

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Disposition Form: Subject Declassification of Document; Preliminary Historical Report on the Solution of the "B" Machine Written by William F. Friedman

Document A58139

47.03 KiB

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Preliminary Historical Report on the Solution of the "B" Machine; the Purple System-by William F. Friedman

Document A58137

755.01 KiB

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