Watch List notes:

(g) George III (1760-1820), 'New Coinage' Sovereign, 1820, 'Open 2', Small Date, laureate head right, rev. St. George and Dragon, edge milled, 7.92g, 6h (Marsh 4 [R3]; MCE 466; Spink 3785C), bagmarked, otherwise a bolder fine, the rarest variety of 1820 Sovereign according to Marsh.

Estimate: £700 - £900