Stanislaus Augustus, 4 groschen 1787

A very nicely preserved piece with legible details.

Obverse: head of the king to the right, in the rim the legend:
STANISLAUS AUG.D.G.REX POL.M.DL.;

Reverse: crowned five-field straight shield of arms with the coats of arms of the Crown, the Grand Duchy of Lithuania and the Ciołek coat of arms of the Poniatowskis, below it the initials E.-B. and the denomination 4.-GR., in the rim the legend:
83 1/2 EX MARCH-PURA COLON:/1787;