Remnants of silver plating. Patina, tarnish.
Obverse: emperor's head in laurel wreath, to the right, in the rim legend:
IMP CA []VAL MAXIMIANVS P F AVG;
Reverse: genio standing left, holding patera and horn of plenty, in MTR section, surrounded by legend:
GENIO POPV-LI ROMANI.
Bronze, diameter 27 x 28 mm, weight 9.4 g, axis 6 h.