Watch List notes:

Britannia Gold Proof Set 2007 the 4-coin set comprising £100 One Ounce, £50 Half Ounce, £25 Quarter Ounce and £10 One Tenth Ounce S.PGB29 nFDC-FDC the £100 One Ounce with a small tone spot, in the Royal Mint box of issue with certificate

Estimate: 2000-3000 GBP