Chalkous - Vologases III

Vologases III presided over a Parthian state increasingly fractured by dynastic infighting — his reign overlapped with at least one rival claimant, and Roman pressure under Trajan briefly cost the empire significant eastern territory around 114–117 AD. Small copper issues like this one served local markets and urban transactions that silver drachms were far too valuable to handle. The chalkous denomination itself is a Greek term carried forward from Seleucid monetary practice, a linguistic fossil embedded in a thoroughly Parthian economic system.