Very nice piece with well preserved most of the details. Scratches in the background.
A rarer coin in the trade, especially in such good condition.
Obverse: head to the right, in the rim legend:
D-G-PETRUS IN LIV-CURL-ET SEMGAL.DUX;
Reverse: crowned shields 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;