The Ultra Secret
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| Google books | books.google.com |
|---|---|
| Originally published | 1974 |
| Authors | F. W. Winterbotham |
| Genres | Personal Narrative |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2917963 |
About The Ultra Secret
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.