Obol - Darayan II King right of altar

Persis was not a successor state in name only — local dynasts there maintained continuous coin production through the Seleucid collapse and well into the Parthian period, asserting a distinctly Iranian identity at a moment when most of the plateau had been absorbed into Arsacid administrative networks. Darev II (Greek: Darius) issued in a region that had been the heartland of Achaemenid power, and the coinage reflects a deliberate archaizing impulse, consciously invoking older Persian royal traditions.

The obol denomination places this squarely in small-change circulation, likely within Persis itself rather than long-distance trade.