Watch List notes:

Guernsey, Silver Proof £10 2000, 'Century of the Monarchy', obv. Rank-Broadley portrait of the Queen, rev., conjoined busts of Victoria, Edward VII, George V, Edward VIII and George VI, .925 silver, weight 5oz (141.7g), encapsulated in Westminster Mint display case, lacking certificate, FDC.
(Estimate: 60 - 80 GBP)