[1]http://www.donet.com/~danderson/bombe/index.html
   The US Navy's Enigma code-breaker, the Bombe, first publicly exhibited
   the summer of 1990 at the Smithsonian
   Would you like to learn more about codes and ciphers, or try your hand
   at some crypto puzzles?
          A fun site to visit:   Tales of the Encrypted
          A good information and links page, just titled         Enigma,
   sponsored by a hardward/software firm in the Netherlands
   Just when I thought everything that could be said about WWII
   cryptography had been said --    Enigma -- The Movie!!!

References

   1. http://www.donet.com/~danderson/bombe/index.html