Watch List notes:

Köln, Klemens August Herzog von Bayern, eighth-mining taler, 1759, Bonn or Koblenz, made from Westphalian fine silver on the resumption of the Ramsbeck mines, Elector's hat above Archbishop's monogram, rev., inscription, 2.72g (Noss 766), virtually as struck, very rare, in NGC holder graded MS63

Estimate: 1000-1500 GBP