In 2015 to celebrate the Last of Ian Rank Broadley Definitive Fourth Portrait, the Royal Mint released a very Limited Issue Royal Shield of Arms £1 One Pound Platinum Proof Coin struck in solid fine 999.5 Platinum.

The £1 One Pound Coin designed by Matthew Dent, features The Royal Shield of Arms while the obverse depicts the Fourth 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.

• Limited Mintage of 10 Worldwide
• Finished to Royal Mint's Proof Quality in Solid 999.5 Platinum
• Reverse Features the Royal Shield of Arms Designed by Matthew Dent
• Obverse Depicts the Fourth Portrait of Her Majesty Queen Elizabeth II
• Encapsulated