Watch List notes:

(g) NGC MS63 | George IV (1820-1830), Sovereign, 1821, laureate head left, rev. St. George and Dragon, edge milled, 8.02g, 7h (Marsh 5; MCE 471; Bentley 13; Stratos 119-120; Spink 3800), a delightful example, fully lustrous and further accentuated by partial mint frosting, almost as struck, scarce in this superlative grade, in NGC holder, graded MS63 (Cert. 6295111-003)

Provenance
The Lansdown Collection of Guineas and Sovereigns