A nice piece.
Obverse: bust of the emperor in laurel wreath, armor and paludamentum, to the right, in the rim legend:
IMP ANTONINVS PIVS AVG;
Reverse: Elagabal standing left, holding patera over altar, surrounded by legend:
P M TR P V COS IIII P P, in field *;
Silver, diameter 19 mm, weight 3.12 g, axis 12 h.