Like many other mints, the Royal Mint issues bullion coins in precious metals, having much higher intrinsic value than their face value. The five ounces (5 oz) gold coins are denominated as either ten pounds (£10) or five hundred pounds (£500).
The coins are legal tender but are not intended for circulation. They are targeted at bullion investors or collectors who appreciate the special editions as pieces of art. The coins are typically "one-year" types usually issued in parallel with smaller denominations with the same reverse designs.
This commemorative five-ounce gold proof coin celebrates the Platinum Jubilee (70th anniversary) of Queen Elizabeth II's reign. It features a special equestrian portrait of the Queen on the obverse, created for the occasion, showing her in her role as Head of the Armed Forces.
On the throne since 6 February 1952, at the date when the coin was issued Queen Elizabeth II was the longest-lived and longest-reigning British monarch, the longest-serving female head of state in history, the oldest living and longest-reigning current monarch, and the oldest and longest-serving incumbent head of state. | 
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