In 2010 to celebrate the 100th Anniversary of Girlguiding, the Royal Mint released a very Limited Issue Girlguiding Piedfort 50p Fifty Pence Silver Proof Coin struck in solid .925 Sterling Silver.
The coin features a repeating pattern of the Girlguiding UK identity. The three leaves of the trefoil represent the threefold Promise of the Guides - duty to God or religion, duty to country, keeping the Guide Law - while the stalk signifies the love of mankind and the star, friendship.
While the obverse has the stunning portrait of Her Majesty Queen Elizabeth II 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 practise of striking piedforts is later and less frequent, but medieval and Tudor examples are known.