Watch List notes:

G British Coins, Elizabeth II, gold proof five pounds (crown), 1999, Princess Diana memorial, issued by the Royal Mint, 22ct., wt. 39.94gms. (S.L6), in fitted case and box of issue, certificate missing, certified and graded by NGC as Proof 68 Ultra Cameo
A scarce and popular coin.
Estimate: (2750-3250 GBP)