Pontos, Amisos, Under Mithradates VI Eupator (ca. 85-65 BC) AE (Bronze, 7.33g, 21mm)
Obv: Octagonal shield bearing aegis, Gorgoneion in center
Rev: AMI -- ΣOY, Nike walking right carrying palm-branch over shoulder; monograms in field to left and right.
Ref: SNG BM Black Sea-1176