In 2006 the Royal Mint released a Limited Issue Britannia Helmet £25 Twenty Five Pound Gold Proof Coin struck in solid 22 Carat Gold and weighing one quarter of an ounce of pure Gold Certified Slabbed and Graded by PCGS as PR69 DCAM.

The reverse design depicts the head of Britannia wearing a helmet, a traditional attribute of Britannia and an indication that she is not defenceless.
The superimposing of a wave pattern conveys a sense of Britannia's nautical background, an aspect along with Britannia's essential Britishness that Philip Nathan has always been keen to emphasise.
The obverse features 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 250 Worldwide
• Mark a milestone or great British moment with this year-dated Britannia coin
• Finished to Royal Mint's Proof Standard
• Struck in 22 Carat Gold weighing one quarter of an ounce of pure Gold
• Features Britannia with Helmet by acclaimed artist Philip Nathan
• Certified Slabbed and Graded by PCGS as PR69 DCAM