Watch List notes:

KINGS OF PARTHIA. Mithradates I, 165-132 BC. Tetrachalkon (Bronze, 20 mm, 6.69 g, 12 h), Ekbatana. Diademed head of Mithradates I to right. Rev. BAΣΙΛΕΩΣ [APΣAKOY] Nike, holding kentron and reins, driving biga to right. Sellwood 12.9. Shore -. A particularly scarce type, strongly influenced by the Greek imagery. Good fine.
From a North American collection.