During the Second World War, the German Armed Forces sent 1000s of Enigma encrypted messages every day. To crack this seemingly unbreakable cipher, the Allies turned to an electromechanical machine to do the job - the Bombe.

The Turing-Welchman Bombe was a marvel of engineering and ingenuity. The first bombe operated in August 1940 and more than 200 existed by the end of the war. By uncovering the daily ‘key’, as many as 5,000 messages to be deciphered each day.

This remarkable guide by Dermot Turing explains how the Bombe works in easy-to-understand language and walks you through the entire codebreaking process. With helpful diagrams and photographs throughout, The Bombe is the essential guide to the machine that changed the course of the war.

A signed copy by Sir Dermot Turing is available for a small additional fee.

Buyers from Europe and USA can now purchase the book online by selecting the appropriate item with postage to your area. For all other countries, please Email Operations@tnmoc.org for postage costs.