Watch List notes:

Australia, Elizabeth II, gold proof one hundred dollars, 1999, The Perth Mint Centenary Sovereign, sovereign-sized gold coin within silver commemorative border, ELIZABETH II AUSTRALIA 100 DOLLARS, head r., wearing tiara, rev. THE PERTH MINT CENTENARY SOVEREIGN 1899-1999, St. George and the dragon, with box and certificate, FDC
One of only 7500 minted, certificate number 3537.
(300-400 GBP)