This rare coin is known as a 'mule' 20p as it has no date on either side - and it is thought there could be thousands more in ...

We are all being encouraged to check our change after a rare 20p coin sold for 485 times its face value this week. The 20p piece is a “mule” coin dating from 2008 and was minted without a date on the ...

We are all being encouraged to check our change after a rare 20p coin sold for 485 times its face value this week. The 20p piece is a “mule” coin dating from 2008 ...

We are all being encouraged to check our change after a rare 20p coin sold for 485 times its face value this week. The 20p piece is a “mule” coin dating from 2008 and was minted without a date ...

He elaborated: "It's all to do with a die mix-up at the Royal Mint, causing the coin to have no date. " This rare occurrence impacted less than 250,000 out of the 136 million 20p coins struck in ...