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Operation Primrose : U110, the Bismarck and the Enigma Code (Paperback) (David Boyle)
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The capture of a working Enigma coding machine from the sinking U110 in May 1941, the pursuit of the battleship Bismarck later the same month, and the reason why British naval cryptographers won stole a march - when their own naval code had been cracked by the other side.
Number of Pages: 103.0
Sub-Genre: Military / Naval