Watch List notes:

XF Details | Charles II (1660-1685), Guinea, 1683, fourth bust, edge obliquely milled, 8.32g, 6h (Waterbird 9; MCE 88; S.3344), probably from a clasp mount with resultant cleaning and surface friction, otherwise almost very fine, in NGC holder, graded XF Details ~ Cleaned (Cert. #5878606-003).
https://www.ngccoin.com/certlookup/5878606-003/Details/
Estimate: £500 - £800