Change Checkers, we set you the task of cracking our serial number code challenge in celebration of the release of the brand new Alan Turing £50 Note. We asked you to use the letters from our clues to spell out a Chief Cashier and to tell us their connection with Alan Turing. A huge congratulations goes to John MacLeod for correctly cracking the code - your Alan Turing £50 Polymer Note Date Stamp Issue is on it's way to you! Our Chief Cashier was Kennith Peppiatt, who held his position when Alan