In 2010, to commemorate the 100th Anniversary of the Death of Florence Nightingale and the publication of her Notes on Nursing, the Royal Mint released a Limited Issue Florence Nightingale Piedfort £2 Two Pound Silver Proof Coin struck in solid .925 Sterling Silver Certified Slabbed and Graded by PCGS as PR68 DCAM.

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.