Cold War Intelligence
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Your search for '*:*, filtered on [Collection Id: cold-war-intelligence, Subject: SIGINT, Subject: Top Secret Ultra, Subject: USSR SIGINT "codes and ciphers"]' returned 3 results.

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Memorandum, Cooke to King, RATTAN Project, June 6, 1945, Top Secret Ultra.

Collection: Cold War Intelligence
Author: Memorandum, Cooke
Date: 1945
Match: Partial (No exact match found)

Memorandum, Thebaud to King, Rattan Project; Present Status of, June 4, 1945, Top Secret Ultra.

Collection: Cold War Intelligence
Author: Memorandum, Thebaud
Date: 1945
Match: Partial (No exact match found)

Memorandum, Cooke to King, June 4, 1945, Top Secret Ultra.

Collection: Cold War Intelligence
Author: Memorandum, Cooke
Date: 1945
Match: Partial (No exact match found)