Drachm - Arsaces II Hekatompylos

Arsaces II consolidated Parthian independence after his predecessor — and likely brother — Arsaces I was killed around 217 BC, possibly in conflict with the Seleucid satrap of the region. His reign coincided with the eastern campaigns of Antiochus III, who pushed deep into Parthia around 209 BC and forced a nominal Seleucid suzerainty that the Parthians endured rather than absorbed. The Sellwood 5 series is broadly attributed to his reign on stylistic and die-link grounds, though the exact sequencing of early Parthian issues remains contested among specialists.

Hekatompylos, the likely mint, served as the Parthian capital before Mithradatkert was established under later rulers.