Pontos, Amisos AE (Bronze, 18.08g, 29mm) Time of Mithradates VI, ca 85-65 BC.
Obv: Helmeted head of Athena right
Rev: Perseus standing facing, holding harpa and gorgoneion; AMI-ΣOY and monograms across field.
Ref: SNG Stancomb 683 (this coin); Recueil général I, 17, 2; SNG BM Black Sea 1169-72; HGC 7, 238.