Even correctly-minted versions of the coin are relatively rare – only the Kew Gardens 50p was produced in fewer numbers. "You lot need to look out for ... received any on special order in ...

With a whopping 25million minted, it's one of the most common 50p coins out there. You'll probably find one in your change faster than you can say 'flopsy bunnies'. And in most cases, guess what?

A rare 50p coin ... could turn out to be a hidden treasure, as collectors are now willing to pay up to 1,500 times its original value. If you happen to have one of these special coins, you ...