Watch List notes:

British Coins, George IV, proof set, 1826, five pounds to farthing, bare head l., rev. various (S.PS1), in original case (clasp damaged), a couple of scratches at 7 o'clock on reverse of five pounds, and some slight rubbing below the bust, presumably to remove a scratch, otherwise all extremely fine or better, the silver deeply toned (11)
Estimate: 75000-85000 GBP