In 2000 to celebrate the Millennium, the Royal Mint released a very Limited Issue solid 22 Carat Gold Proof Sovereign 4 Coin Set and includes the £5 Five Pound Piece, £2 Two Pound Double Sovereign, Full Sovereign, Half Sovereign.
The Sovereign, first issued as a Coin of the Realm in 1489 during the reign of Henry VII, was created to convey the majesty and dignity of the English Throne.