One of England's first ever gold coins has been discovered on a farm in Devon - and it's expected to fetch up to half a million at auction.
The rare King Henry III coin, which is just under an inch in diameter but estimated to be worth at least £400,000, was minted in about 1257 by William of Gloucester with gold imported from North Africa.
It was found by a gold detectorist on his first work outing in a decade in Hemyock, Devon last September.
