Nice Piece. Light delamination of the sheet metal.
Patina, tarnish.
Obverse: bust of the emperor in laurel wreath, armor and paludamentum, to the right, in the rim legend:
IMP CAES NER TRAIANO OPTIM AVG GER DAC PARTHICO
Reverse: Mars walking right, holding spear and tropajon, in the rim legend:
P M TR P COS VI P P;
Silver, diameter 18 x 19.5 mm, weight 2.85 g, axis 6 h.
