Watch List notes:

Köln, Klemens August Herzog von Bayern, half-mining taler, 1759, chronogrammatic date, Bonn or Koblenz, made from Westphalian fine silver on the resumption of the Ramsbeck mines, bust of Archbishop right, rev., view of the mines, 10.85g (Noss 764), extremely fine or better, very rare, in NGC holder graded MS63

Estimate: 1500-2000 GBP