Coins from Kingdom of Persis
When the Parthian Arsacid king Mithridates I (ca. 171-138 BC) took control of Persis, he left the Persian dynasts in office, known as the Kings of Persis, and they were allowed to continue minting coins with the title of mlk ("King").
Kingdom of Persis
(1) Ardakhshir II
An AR Obol struck 50-1 BC in Persepolis
Obverse: bust left, wearing diadem and Persepolitan crown with stepped battlements

Reverse: king standing left, holding sceptre; lit altar to left

Diameter: 10.5 mm
Die Orientation: -
Weight: 0.7 g
Persis under Parthians
Alram 577