Watch List notes:

George III (1760-1820), Quarter-Guinea, 1762, edge obliquely milled, 2.11g, 6h (Murdoch III, -; Selig 1079-80; King 192; Schneider II, 627; MCE 463; Spink 3741), lustrous, good very fine.
Provenance
From the Quinn Collection
, ,
NGC AU-Details ~ Reverse Rim Filed (Certification #5879377-007)
, https://www.ngccoin.com/certlookup/5879377-007/NGCDetails/
Estimate: £300 - £400