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Military History Books
ULTRA GOES TO WAR
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Author: Ronald Lewin
Publisher: Arrow Books
Year published: 1980
Pagination: 398pp illustrations
Mass market paperback. Pages browning.Creasing on covers. Good The history of Ultra, from the invention of the original Engima coding machine, the Polish pioneering work, and its development by the British at Bletchley Park, Station X, to break the German signals codes in WWII. Lewin bases his research not only on the signals recently released by the Public Records Office (National Archive), but also on interviews with the men and women of Bletchley Park and the Special Liason Units.