The British decimal twenty pence coin (often shortened to 20p in writing and speech) is a denomination of sterling coinage worth 1⁄5 of a pound.

Between 1985 and 1997 the portrait by Raphael Maklouf was used,[5] in which the Queen wore the George IV State Diadem.

[6] The winner, announced in April 2008, was Matthew Dent, whose designs were gradually introduced into the circulating British coinage from mid-2008.

This was the result of the production of a mule, i.e. a version of the coin with a non-standard combination of obverse and reverse face designs.

The fault occurred as a result of the 2008 redesign of UK coinage, which moved the date on a 20 pence from the reverse to the obverse (Queen's head side), and a batch of coins were produced using the tooling for the obverse of the old design and the reverse of the new design.

The Royal Mint stated that these coins were legal tender,[10] although due to their rarity they are traded at above face value by collectors.