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William F. Friedman, Technical Advisor to the International Telegraph Conference in Brussels, Elizebeth S. Friedman, with the State Department Delegation in Preparation for the Conference
1928
Physical Description:
Black and White Photograph
Subjects:
Cryptology
William F. Friedman, Elizebeth S. Friedman, State Department Officials
Location unknown, presumed Washington, D.C.
Summer, 1928.