PONTOS. Amisos. Time of Mithradates VI Eupator (?), circa 100-85 BC. AE (Bronze, 16 mm, 3.29 g, 12 h). Owl standing right, head facing. Rev. ΑΜΙ-ΣΟΥ Trident; to upper left, monogram. HGC 7 -. SNG BM Black Sea -. SNG Stancomb -. SNG von Aulock -. Apparently unpublished. Light areas of corrosion, otherwise, very fine.
The trident usually appears on Amisos' issues as a countermark.