Dichalkon - Seleukos I Antioch

Seleukos I founded his dynasty in the chaos following Alexander's death, seizing Babylon in 312 BC — the year from which the Seleucid Era was later reckoned. Antioch on the Orontes, established around 300 BC and named for his father Antiochos, quickly became the primary western mint of the new kingdom, displacing Babylon for much of the bronze coinage serving Syrian markets.

The SC1 classification places this piece among the earliest Antiochene issues of the reign, a mint whose output Newell systematically catalogued before Houghton and Lorber's definitive corpus corrected and expanded his attributions decades later.