Tetradrachm - Mostis

The Caeni were a minor Thracian tribe whose coinage is almost entirely defined by a single political reality: proximity to the expanding Macedonian and later Roman spheres of influence forced them to produce silver on a Greek weight standard to remain viable in regional commerce. Mostis, whose name appears on these tetradrachms, is known only through his coins — no literary source records him. Whether he was a dynast, a tribal chief, or something in between remains unresolved.

The type's wide distribution across major collections from Copenhagen to the Zhuyuetang suggests reasonably broad circulation for a tribal issue, yet the Caeni left no successor coinage after the late first century BC.