The Ultra Secret -- first account of the most astounding cryptanalysis coup of World War II. F. W. Winterbotham.
The Ultra Secret -- first account of the most astounding cryptanalysis coup of World War II

The Ultra Secret -- first account of the most astounding cryptanalysis coup of World War II.

Harper & Row, CA and NY 1974, 199 pages, index.

Condition: Good overall, tan and brown hardcover, in Good overall white illustrated dustjacket. Jacket flap priceclipped, very much chipped and edgeworn along top front. Binding of the book is sound but a slight spine lean, the pages are clean, unmarked.

Price: $6.00

Item Description

first account of the most astounding cryptanalysis coup of World War II, how the British broke the German code and read most of the signals between Hitler and his generals throughout the war...

In 1939, just before the outbreak of WWII, British intelligence achieved, with the help of a Polish defector and the Polish Secret Service, an astounding cryptanlysis coup which enabled them to obtain a precise copy of the highly secret and complex German coding machine known as Enigma... (from the jacket flap).