An employee of Christie's auction house poses with a German three-rotor Enigma cipher machine, circa 1939, in London on March 27, 2013 during a press preview of their April 'Travel, Science and Natural History' sale. This machine was widely used during World War II to encrypt and decode messages sent between the German military and their commanders and is estimated to fetch 40,000 - 60,000 GBP when it goes on sale on April 24, 2013.
{"Image ImageDescription": "An employee of Christie's auction house poses with a German three-rotor Enigma cipher machine, circa 1939, in London on March 27, 2013 during a press preview of their April 'Travel, Science and Natural History' sale.  This machine was widely used during World War II to encrypt and decode messages sent between the German military and their commanders and is estimated to fetch 40,000 - 60,000 GBP when it goes on sale on April 24, 2013. AFP PHOTO / JUSTIN TALLIS        (Photo credit should read JUSTIN TALLIS/AFP via Getty Images)", "Image Copyright": "2013 AFP"}