Nicely preserved details.
A prized, rarer item in the trade.
Obverse: head to the right, in the rim legend:
D-G-PETRUS IN LIV-CURL-ET SEMGAL.DUX;
Reverse: crowned escutcheons with the coats of arms of the Crown of the Kingdom of Poland and the Grand Duchy of Lithuania, in the rim legend:
MON-NOVA ARG-DUC-CURL-AD NORMAM TAL-ALB-1780;