The 20p piece is a rare “mule” coin dating from 2008, and fetched £90 at auction. The coin was minted without a date due to an error and quickly became a sought-after collector’s items.

The coins have been dubbed the 'holy grail' of change collecting and if you find one it could be worth a lot more than 20p ...

A rare 20p coin could fetch more than 250 times its face value to someone lucky enough to find one. Back in 2008 a minting ...

We are all being urged to check our change after a rare Royal Mint 20p coin sold for 450 times its face value on eBay. The 20p piece is a rare “mule” coin dating ...

Alex Natoli from Coinxchange said you could sell an uncirculated 2000 $1 mule coin for as much as $4,990 as they're fairly "elusive". But he goes through plenty of rolls of $1 coins and is yet to find ...

We are all being urged to check our change after a rare Royal Mint 20p coin sold for 450 times its face value on eBay. The 20p piece is a rare “mule” coin dating from 2008, and fetched £90 at ...