WWII carrier pigeon message discovered in Surrey chimney
30 September 2014 Last updated at 23:59 BST
Government code-breakers are working on deciphering a message that has remained a secret for 70 years.
It was found on the remains of a carrier pigeon that was discovered in a chimney, in Surrey, having been there for decades.
It is thought the contents of the note, once decoded, could provide fresh information from World War II.
John Maguire reports.
Archive footage courtesy British Pathe