Watch List notes:

Five Hundred Pounds 2018 One Kilo of .999 Silver S.BK1 an impressive one-year type, FDC in the Royal Mint box of issue with certificate and booklet. Number 123 of only 250 minted, just 150 were issued in this format. Currently lists at £2025 in the Spink catalogue

Estimate: 800-900 GBP