Bletchley Park was where one of the warOCOs most famous OCo and crucial OCo achievements was made: the cracking of GermanyOCOs OC EnigmaOCO code in which its most important military communications were couched.

This country house in the Buckinghamshire countryside was home to BritainOCOs most brilliant mathematical brains, like Alan Turing, and the scene of immense advances in technology OCo indeed, the birth of modern computing. The military codes deciphered there were instrumental in turning both the Battle of the Atlantic and the war in North Africa.

But, though plenty has been...

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 prewar 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...