In 2003 to celebrate the 21st Birthday of Prince William, the Royal Mint on behalf of Alderney released a very Limited Issue Prince William £5 Five Pound Silver Proof Coin struck in solid .925 Sterling.
The reverse depicts a portrait of Prince William and his Coat of Arms by sculptor David Cornell. The obverse is a portrait of Queen Elizabeth II designed by Raphael Maklouf. These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.
