| Entry Text: | HYDE, H. Montgomery. Cynthia. [viii], 240p., illus. New York: Farrar Strauss and Giroux, 1965.
Sir William Stephenson considered her the greatest unsung heroine of the war. Her daring exploits included the acquisition of the Italian naval cypher, which is claimed to have affected the battle of Matapan, while the acquisition of the Vichy French cyphers affected beneficially the North African Torch landings. |
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