Watch List notes:

Five Hundred Pounds 2017 The Queen's Sapphire Jubilee 1 Kilo Silver Proof FDC in a large NGC holder and graded PF70 Ultra Cameo, one of the first 50 struck, in the Royal Mint box of issue with certificate and booklet, certificate number 3 of 50 issued in this format

Estimate: 850-950 GBP