Watch List notes:

Britannia Gold Proof Set 1999 the 4-coin set comprising £100 One Ounce, £50 Half Ounce, £25 Quarter Ounce and £10 One Tenth Ounce S.PGB16 nFDC to FDC the £25 and £10 each with a tone spot on the reverse, in the Royal Mint box of issue with certificate

Estimate: 1600-2200 GBP