The Ultra secret
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Publication
1975 - Dell, New York, New York (State)
Language
English
Word Count
71,500 words, Guess
Page Count
286 pages
Identifiers
- Internet Archiveultrasecret00wint
- OCLC Control Number1869492
- Open LibraryOL24222672M
Description
Operation Ultra was designed to intercept & decode German signals sent using Enigma, the top-secret German cypher machine. F.W. Winterbotham, was the man responsible for the organization, distribution & security of Ultra. This is his personal account of the operation.
Subjects
Topics
Places
People
Genres
- Personal narratives, English
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