1982 Apr 30 - 1982 Jul 27
Prime Ministerial Private Office files
PREM19/910
Security (Publication of book by Gordon Welchman (former head of Hut 6) called 'The Hut Six Story' on wartime German Enigma cryptanalysis: reactions of US and UK governments)
| Source: | TNA, PREM19 series |
|---|---|
| Release date: | 2012 Dec 28 |
| Classification: | Secret |
| Page count: | 8 |
PREM19/910 - download whole file (PDF, 886.73 KB)