Undated 20 Pence Mule (2008)

The 2008 undated twenty pence mule is popular error coin that owes its existence to a mix-up at the Royal Mint between the old twenty pence obverse die and the new reverse die. The result is a coin that bears no date. If you collect Australian one dollar mules, or enjoy unusual coins, why not pick up this twenty pence mule, too. It’s an interesting coin that, to this day, remains popular with English decimal coin collectors.