The Playfair Cipher was invented by scientist Sir Charles Wheatstone in 1854 and popularised by his friend, Baron Playfair. It was developed for telegraph secrecy and, although insecure by modern standards, was practical and effective in its day. It was used by the British Army in the Boer War and Great War and by several armed forces as an emergency back-up cipher in the Second World War.
The following letters, originally collected from Culpepper’s Dish, Clouds Hill and Frome Ford, are an anagram:
E E O R T T U E F H I N R T A H E N T V
When unscrambled, they form the title of a book. This title is the keyword for a Playfair cipher. It enables you to decrypt the co-ordinates below and find the final cache location.
OF UH EO NA RS AF UH SR EU XX LA NO NT FZ HS FH GQ EH
XH TN HS NH XH VN SR HB LA NO EN NG TX TC TF UF BU SE
You can find further information about the Playfair cipher on the web, including decoders.