This is beautifully slipcased presented collector' s edition of the best selling title, The Lost World of Bletchley Park, a comprehensive illustrated history of this remarkable place, from its pre-war heyday as a country estate, its wartime requisition and how it became the place where modern computing was invented and the German Enigma code was cracked, to its post-war dereliction and then rescue towards the end of the twentieth century as a museum.Removable memorabilia includes:1938 recruiting memo with a big tick against Turing' s name Churchill' s ' Action this day' letter giving code breakers extra resources Handwritten Turing memos Top Secret Enigma decryptions, about the sinking of the Bismark, German High Command' s assessment of D-Day threat and the message announcing Hitler' s suicide A wealth of everyday items such as call-up papers, security notices and propaganda posters Newly redesigned interiors with 25% new content, high end slipcase package featuring removable facsimile documents, this is an essential purchase for everyone interested and wanting to experience the place where code-breaking helped to win the war.