Watch List notes:

PONTOS. Amisos. Time of Mithradates VI Eupator (Circa 105-90 or 90-85 BC). Ae, 19,57 g. 27,8 mm.
Obv: Helmeted head of Athena right. Rev: AMI - ΣOY. Perseus standing left, holding harpa and head of Medusa, whose decapitated body lies at his feet; monogram to left and right. SNG BM Black Sea 1166; HGC 7, 238.