400
700
900
The Ultra Secret
F.W. Winterbotham

The Ultra Secret

Dell (1975)
9780440090618
| Soft Cover
286 pages | 1.5 x 2.7 inch | English

Subject

  • Codes And Cyphers
  • World War, 1939-1945 - Technology

Plot

Operation Ultra was designed to intercept and decode German signals sent using Enigma, the top-secret German cypher machine. F.W. Winterbotham, was the man responsible for the organization, distribution and security of Ultra. This is his personal account of the operation.

Personal

Owner MD
Read
Index 1752
Added Date Sep 24, 2015 20:32:22
Modified Date Mar 27, 2024 12:14:54