Watch List notes:

(g) The Uvedale Collection | AU Details | George III (1760-1820), 'New Coinage', Sovereign, 1820, 'Open 2', laureate head right, rev. St George and Dragon, edge milled, 8.03g, 5h (Marsh 4; MCE 466; Spink 3785C), light scratch below bust and mark to cheek, otherwise bright and lustrous, a really bold very fine, in NGC holder, graded AU Details ~ Cleaned (Cert. #6135270-002).
Purchased September 1997
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https://www.ngccoin.com/certlookup/6135270-002/NGCDetails/
Estimate: £600 - £1000