Gordian III and Serapis, AE27 of Odessos, Thrace.

AVT K M ANTWNIOC GORDIANOC AG, laureate, draped and cuirassed 
bust of Gordian right, facing draped bust of Serapis left, 
cornucopiae to right.
ODHCCEITWN, Nemesis standing left, holding rod and ribbon or
bridle, wheel at foot. E in left field.

Varbanov 4518 (this coin cited).