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- Enigma cipher system
- Jones, R. V. (Reginald Victor), 1911
- Scientists--England--Biography
- World War, 1939-1945
- World War, 1939-1945--Great Britain
- World War, 1939-1945--Personal narratives, British
- World War, 1939-1945--Secret service--Great Britain
- World War, 1939-1945--Technology
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