A natural circulated example of a Prussian thaler.
Rarer variety with mint mark between two dots.
Obverse: the ruler's head to the right, in the rim the legend:
FRIDERICUS BORUSSORUM REX;
Reverse: eagle seated on war trophies, in the rim EIN REICHS THALER, in the segment on the console the date 1786 punctuated by the mint mark A;