Specialist Edward Ripley-Duggan demonstrates the Enigma Machine that will be auctioned at Doyle in New York on November 7, 2017. It is estimated at $80,000-120,000. The Enigma Machine was used by the German Wehrmacht and Luftwaffe during World War II to encode orders and instructions, using a complex system of rotors and patch cables. The German High Command believed the Enigma cipher to be totally secure; British cryptographers at Bletchley Park under Alan Turing were able to break it, giving Britain and its allies a huge military advantage that may have shortened the War by as much as two years. For further details, visit Doyle.com