In 1907-S the Royal Mint in Sydney Australia released a St George and the Dragon Gold Full Sovereign Coin with a special "S" Mint Mark for Sydney Mint and has been struck in solid 22 Carat Gold and has been Certified Slabbed and Graded by PCGS as MS62.
The reverse design depicts Pistrucci's St George Slaying the Dragon while the obverse has the portrait of Edward VII.