Parthian coinage
Image:Coin of Vologases I, minted at Seleucia in 51 or 52.jpg|thumb|300px|Tetradrachm of the Parthian king Vologases I, struck at Seleucia. On the obverse is a portrait of the king wearing a trouser-suit, diadem and beard. The reverse depicts an investiture scene, where the king is receiving a scepter by the Greek goddess Tyche. In the Parthian era, Iranians used Hellenistic iconography to portray their divine figures, thus the investiture scene can be associated with the Avestan khvarenah, i.e. kingly glory.
Parthian coinage was produced within the domains of the Parthian Empire. The coins struck by the Parthians were mainly made of silver, with the main currencies being the drachm and tetradrachm. The tetradrachm, which generally weighed around 16 g, was only minted in Seleucia, first conquered by the Parthians in 141 BC. Design-wise, Parthian coinage was based on Seleucid and Achaemenid satrapal coinage.