A manuscript handwritten by Bletchley Park codebreaker Alan Turing could fetch more than £1 million at auction. The 56-page document, which is full of mathematical notes, is thought to be have been written by Turing during World War Two. It will be sold at Bonhams auction house, New York on April 13. http://www.theargus.co.uk/news/11737376.Codebreakers notes_auction_could_top 1m/