In 2022 to celebrate the Alan Turing the final coin in the Innovation in Science Series, the Royal Mint released a Limited Issue Alan Turing Piedfort 50p Fifty Pence Silver Proof Coin struck in solid .925 Sterling Silver.

The reverse, designed by Matt Dent and Christian Davies incorporates elements of codebreaking as a fitting tribute to Alan Turing while the obverse features a portrait of Her Majesty Queen Elizabeth II by Jody Clark.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.

Piedforts are coins which have been especially 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.

• A Limited Edition of just 1,500 Coins Worldwide
• Piedfort Double the Thickness and Weight of it's Standard Counterpart
• Finished to Royal Mint's Proof Quality in Solid .925 Sterling Silver
• Perfect for collections dedicated to Science and Discovery
• Final UK 50p Coin Release in the Innovation in Science Series
• Features a design by the experienced designers Matt Dent and Christian Davies
• The reverse incorporates elements of codebreaking as a fitting tribute to Alan Turing
• Royal Mint Boxed with Certificate of Authenticity