Watch List notes:

Britannia £25 2017 Platinum Quarter Ounce, with trident privy mark, 30th Anniversary of the first Britannia coin S.BO21, Platinum Proof FDC in an NGC holder and graded PF70 Ultra Cameo, 'One of the first 100 struck' in a Royal Mint box with certificate

Estimate: 270-320 GBP