A very nice, slightly deficient piece.
Obverse: bust of the king to the left, in the rim legend:
LUD-XVI-D-G-FR--ET NAV-REX-;
Reverse: crowned shield of the coat of arms with French lilies, under it a laurel wreath, in the rim legend:
SIT NOMEN DOMINI M BENEDICTUM+1786.
Rant: DOMINE SALVUM FAC REGEM
Silver, diameter 41,5 mm ,weight 29,4 g.