A nicely preserved piece.
Rarer type of head looking up.
Obverse: august head in rosette diadem, to the right, in the rim legend:
CONSTAN-TINVS AVG;
Reverse: laurel wreath, within it legend VOT/XXX, within the rim legend:
D N CONSTANTINI MAX AVG, in segment -SMHDelta;
Bronze, diameter 17 mm, weight 3.39 g, axis 12 h.