A never-before-seen Alan Turing's handwritten journal of Enigma code-breaker was sold for more than 1 million dollars at New York auction.
It was one of very few manuscripts from the head of the team that cracked the Germans' Enigma code, BBC News reported.
The handwritten notes, dating from 1942 when he worked at Bletchley Park, were entrusted to mathematician Robin Gandy after Turing's death.