Code breaker Turing's notes net $1 million

A handwritten notebook by British World War II code-breaking genius Alan Turing, who was the subject of the 2014 Oscar-winning film The Imitation Game, brought more than $1 million at auction on Monday.

The 56-page manuscript was written at the time the mathematician and computer-science pioneer was working to break the seemingly unbreakable Enigma codes used by the Germans throughout the war. It contains his complex mathematical and computer-science notations and is believed to be the only extensive Turing manuscript known to exist, Bonhams auction house says.

The sale price was $1,025,000.