Circulating piece, patina.
Obverse: emperor's head in laurel wreath, to the right, in the rim legend:
L SEPT SEV PERT AVG IMP III;
Reverse: Pax seated on a throne to the left, holding a horn of plenty and a branch, surrounded by legend:
PACI AVGVSTI
Silver, diameter 18 x 19 mm, weight 3.16 g, axis 7 h.