I've known about the background of how the Keep Calm and Carry On poster literally saw the light of day, but just thought that others may find it interesting. The posters were uncovered in Barter Books, a bookstore in Alnwick, Northumberland in the North East section of England. The bookstore was formerly a railroad station. I hope to "cross the pond" some day to pay the store a visit, since I love books almost as much as trains.
Tom