In 2008, to celebrate the London 2012 Olympic Games and the Handover from Beijing to London, the Royal Mint released a Limited Issue Olympic Games Handover Piedfort £2 Two Pound Silver Proof Coin struck in solid .925 Sterling Silver.
The obverse is a portrait of Queen Elizabeth II designed by Ian Rank Broadley.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.
Piedforts are coins which have been specially struck on thicker than normal blanks.
As their name suggests they are closely associated with France, where from the twelfth century they were apparently issued by the Kings as presentation pieces.
In Britain the practice of striking piedforts is later and less frequent, but medieval and Tudor examples are known.