Seleukid King of Syria, Antiochos I Soter AE (Bronze, 6.41 g 18mm), 281-261 BC. Antioch on the Orontes. Obv: Laureate head of Zeus right. Rev: ΒΑΣΙΛΕΩΣ / ANTIOXOY. Thunderbolt; jawbone below.Countermark: Anchor. Ref: SC 343; HGC 9, 149.