In 2015 to celebrate Queen Elizabeth II the Longest Reigning Monarch, the Royal Mint on behalf of Great Britain released a very Limited Issue Longest Reigning Monarch £5 Five Pound Silver Proof Coin struck in solid .925 Sterling Silver Certified Slabbed and Graded by PCGS as PR69 DCAM.
The reverse designed by James Butler depicts the familiar symbol of royalty, the Coronation Crown, while the obverse features a rare, commemorative effigy of Her Majesty the Queen.