William F. Friedman NSA Archive - Correspondence and Worksheets Regarding the Decoding of American Indian Messages Which Friedman Passed to the US Senate Committee, 1926-1929 - 4in1

4in1 by idb & friends

articles files wiki about invisible college

Files W.F.F. Archive Correspondence, Memoranda, and Personnel File Records Correspondence and Worksheets Regarding the Decoding of American Indian Messages Which Friedman Passed to the US Senate Committee, 1926-1929

Correspondence: W.F. Friedman Decoded Bureau of (American) Indian Affairs Messages for U.S. Senate Committee; S-028,417

Document A4127217