Watch List notes:

(g) Elizabeth II (1952-2022), Proof Britannia Twenty Five Pounds, struck in fine gold, 2008, Britannia standing facing ledt, rev. crowned head right, milled edge, 12h, 8.52g (Spink BO10A), brilliant as struck, in original Royal Mint case of issue, No. 0566.

Estimate: £400 - £500