A mystery pot uncovered in Corfe Castle over 25 years ago has finally gone on show ... as an ancient grenade.

Archeologists found fragments of the three-handled container in 1986, but never knew what it was for - until a Dutch professor recognised it on Facebook as a smoke bomb from Holland.

It's now gone on display at the castle until July the 29th as part of the Festival of Archaeology ... with it's correct title!