After cleaning the coins, Revill reported his discovery to finds liaison officer Meghan King, at Derby Museum, who organised the lengthy process of having the coins inspected by a coroner.
Revill was told his find originated from Henry III’s era in the 13th Century, with one coin minted in Canterbury and the other in London.
Four decades into his hobby, Revill described it as an “absolutely fantastic” way to exercise.
“I have a problem with my leg, which has come from an accident in old age. So my hobby helps me tremendously,” he said.
“I can walk for a bit, kneel down on the floor, dig a hole, have a rest, walk for a bit, kneel down, dig a hole. It’s ideal.”
