Parthian Kingdom. Mithradates I. Silver Drachm (3.58 g), ca. 171-138 BC. Hekatompylos. Diademed and draped bust of Mithradates I left. Reverse: Archer seated right on omphalos, holding bow. Sellwood 11.1; Shore 24. Rare. Toned. Extremely Fine. Estimated Value $500 - 600