A very nice piece.
Beautiful luster in the background.
A rarer coin in this state of preservation.
Obverse: bust of the ruler to the right, in the rim the legend:
FRIED-WILHELM KOENIG VON PREUSSEN;
Reverse: crowned shield with the coat of arms of Prussia, below it on two branches the mint mark E, on the sides of the shield the date 17-88, in the rim the legend:
3 EINEN R.THALER;