An Anglian sword found at a castle in Northumberland has been declared the only one of its kind in the world.
Experts at the Royal Armouries in Leeds, say X-rays of the 7th Century sword prove it was made from a unique method using slices of carbonised iron.
The sword lay in a suitcase, after being unearthed in an excavation at Bamburgh Castle in 1960.
Note to everybody: Go check your attics and basements this weekend.