A nice piece. Patina.
Obverse: bust of the emperor in radial crown, armor and paludamentum, to the right, in the rim legend:
IMP GORDIANVS PIVS FEL AVG;
Reverse: Apollo seated on throne to left, holding branch, surrounded by legend:
P M TR P IIII COS II P P;
Silver, diameter 21 x 23 mm, weight 4.96 g, axis 12 h.