- The Turing Bombe The Turing Bombe was manufactured by the British Tabulating Machine Company in Letchworth, Hertfordshire, England. The name and logo used at BTM for the Bombe machines was The Rebuild Project ***** MAJOR MILESTONE ACHIEVED ***** PLEASE SELECT THE SUBJECT YOU ARE INTERESTED IN FROM BELOW The Rebuild Programme The British Tabulating Machine Company Versions of the Bombe ...www.jharper.demon.co.uk/bombe1.htm