Extract from 'Bodyguard of Lies' Anthony Cave Brown. 'Ultra' The origins of special means. Newspaper cutting: When Enigma yielded Ultra by Peter Calvocoressi. The Listener.
- PART OF:
- National Physical Laboratory Archive
- Made:
- January 1977
- part of archive:
- National Physical Laboratory Archive
- maker:
- National Physical Laboratory
Details
- Identifier:
- NPL/K4
- Access:
- Open Access
- rights:
- Copies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions