Watch List notes:

(g) Elizabeth (1952-2022), Proof Piedfort Sovereign, 2017, 'Bicentennial of the Modern Sovereign', crowned bust right, rev. St George and dragon, within Garter, milled edge, 15.99g, 12h (Spink SC12), surfaces very lighty fingermarked, otherwise brilliant and as struck, in original Royal Mint case, with Certificate of Authencity, no. 2683 of only 3,750 struck.

Estimate: £800 - £1000