A nice piece with residual luster.
A vintage occasionally noted in such good state of preservation.
Obverse: head of the king to the right, in the rim legend:
STANISLAUS AUG.D.G.REX POL.M.D.L.;
Reverse: crowned five-field escutcheon with the coats of arms of the Crown, the Grand Duchy of Lithuania and the Ciołek coat of arms of the Poniatowskis, in a palm wreath banded with a ribbon with the Order of the White Eagle; below it, separated by the Order initials I--S- and the denomination 8-GR, surrounded by the legend:
XL.EX.MARCH.-PURA.COL.1769-;