A German Enigma machine is displayed at the Bonhams during a press preview in New York on April 9, 2015. The machine is part of an upcoming auction that also features a handwritten manuscript belonging to British mathematician and code breaker Alan Turing, who played an important role in breaking the German Enigma Code during world war II. AFP PHOTO/JEWEL SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
