Bletchley Park Samsonite Clipboard and A4 Notepad (50 head-glued sheets)
Bletchley Park was the central site for Britain's codebreakers during World War II. Run by the Government Code and Cypher School (GC&CS), it regularly penetrated the secret communications of the Axis Powers – most importantly the German Enigma and Lorenz ciphers. The official historian of World War II British Intelligence has written that the "Ultra" intelligence produced at Bletchley shortened the war by two to four years, and that without it the outcome of the war would have been uncertain.
These A4 Notepads, bound in sheets of fifty on a samsonite clipboard are based on the 'Banbury Sheets' the top secret codebreaking documents, a system devised by Alan Turing to help find the daily-changing Enigma settings. So-called because the stationery was printed in Banbury.