Top secret documents from Bletchley Park are to go on display.

The documents were originally found shoved into cracks in the roof of Hut 6, where Alan Turing and his team of codebreakers worked to decipher German army and air force messages.

Along with the fragmentary codebreaking documents found in the roof were parts of an atlas, a pinboard and a fashion article from a magazine. It seems clear that Turing and his team used whatever was to hand to plug up holes in the roof of Hut 6.