In 2015 to celebrate Her Majesty Queen Elizabeth II the Longest Reigning Monarch, the Perth Mint released a special Limited Issue Longest Reigning Monarch $25 Twenty Five Dollar Gold Proof Coin struck in solid fine .9999 Gold weighing one quarter of an ounce of pure Gold Certified Slabbed and Graded by PCGS as PR69 DCAM.

The reverse designed by Natasha Muhl features the Royal Cypher summounted by St Edwards Crown while the obverse depicts Ian Rank Broadley's portrait of Her Majesty Queen Elizabeth II.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.

• Limited Mintage of 1,000 Worldwide
• Finished to Perth Mint's Proof Quality
• Struck in Solid Fine .9999 Gold Weighing One Quarter of an Ounce of Pure Gold
• Celebrating Queen Elizabeth Longest Reigning Monarch
• Certified Slabbed and Graded by PCGS as PR69 DCAM