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Clear Search 222 results found.

Herbert O. Yardley Document Collection

INTERNAL NSA MEMO ON ALLEGATIONS CONCERNING YARDLEY MADE IN LADISLAS FERRAGO BOOK, 8 January 1968

Herbert O. Yardley Document Collection

RESPONSE TO INTERNAL NSA MEMO ON ALLEGATIONS CONCERNING YARDLEY MADE IN LADISLAS FERRAGO BOOK, January 1968

Herbert O. Yardley Document Collection

Translation of Intercepted German Cipher Message, to Churchill from Yardley

Herbert O. Yardley Document Collection

1918 Herbert Yardley - F. W. Allen Correspondence Related to Operations of MI-8, 1918 April-December

Herbert O. Yardley Document Collection

NOTE TO YARDLEY FROM PROB FRIEDMAN, 17 JUNE 1929

Herbert O. Yardley Document Collection

WORKING NOTES ON CODE FROM M.I.D. REPORT, 1 APRIL 1930

Herbert O. Yardley Document Collection

MESSAGE NO. 14 CHINESE DECLARATION OF WAR AND OTHER ARRANGEMENTS, 7 JANUARY 1943

Herbert O. Yardley Document Collection

MESSAGE NO. 58 ITEMS PERTAINING TO THE SETTLEMENTS IN CHINA BY THE FRENCH, 17 FEBRUARY 1943

Herbert O. Yardley Document Collection

INTERNAL ASA MEMO ON UPDATED INFO ON YARDLEY, 17 NOVEMBER 1949

Herbert O. Yardley Document Collection

MEMO TO D33 FROM J.R. CHILES, S1 "STATE DEPARTMENT MESSAGES" 3 JANUARY 1968

Herbert O. Yardley Document Collection

ACHIEVEMENTS OF THE CIPHER BUREAU (MI-8) DURING THE FIRST WORLD WAR, BY YARDLEY, 25 MAY 1945

Herbert O. Yardley Document Collection

MESSAGE INTERCEPTED ON RK3 TO RP7, 9 FEBRUARY 1915-1920

Herbert O. Yardley Document Collection

INTERCEPTIONS NOTES 12-17 FEBRUARY 1915-1920

Herbert O. Yardley Document Collection

INTERCEPTION, 16 FEBRUARY 1915-1920

Herbert O. Yardley Document Collection

INTERCEPTED CODE BY THE UNITED STATES COAST GUARD, RK3 TO RP7, 14 DECEMBER 1915-1920

Herbert O. Yardley Document Collection

CORRESPONDENCE TO MOORMAN FROM YARDLEY, 1915-1920

Herbert O. Yardley Document Collection

J MESSAGE UPDATE TO COLONEL LOCKER, 18 APRIL 1922

Herbert O. Yardley Document Collection

SUMMARY OF J MESSAGES FROM 9800 TO 9899, 28 AUGUST 1923 - 23 JUNE 1924

Herbert O. Yardley Document Collection

INTERCEPTS OF RK3 TO RP7, 14 DECEMBER 1915-1920

Herbert O. Yardley Document Collection

INFORMATION ON CUSTOM HOUSE SAN FRANCISCO, DATE UNKNOWN

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