Watch List notes:

GREAT BRITAIN. Elizabeth II, 1953-. Gold 2 Pounds 1991, Royal Mint. Proof. 15.98 g. Mintage 3,108. S-SD2. The 1991 United Kingdom Gold Proof 2 Pounds / Double Sovereign coin, featuring HM Queen Elizabeth's II third portrait by Raphael Maklouf. As struck, in Royal Mint capsule. FDC.