Drachm - Nahapana

Nahapana ruled the Western Satraps at their greatest territorial extent, controlling much of western and central India before Gautamiputra Satakarni of the Satavahana dynasty launched a devastating campaign — probably around 124 CE — that effectively ended his reign and saw large quantities of his coinage countermarked or restruck by the victorious Satavahanas. Thousands of Nahapana's silver pieces were overstruck, a rare case where a conquering dynasty's monetary policy survives in the archaeological record.