A RARE error on your 20p coin means that it could sell for more than 300 times its worth
A rare Royal Mint 20p coin has sold on for more than £60 at auction.
The unique 20p piece minted in 2008 has no date on it There are around 250,000 of these “mule” coins in circulationThe lucrative 20p piece is known as a “mule” coin, released into circulation in 2008 after a manufacturing error.
Traditionally, coins would be dated on the “tails” side. But in 2008, the...