The reign of Indo-Greeks was from 180 BC to around 10 AD. The Indo-Greeks introduced the fashion of showing the bustor head of the ruler on the coins.
The legends on their Indian coins were mentioned in two languages, in Greek on one of the side and in Kharosthi on the other side of the coin. The Greek gods and goddesses commonly shown on the Indo-Greek coins were Zeus, Hercules, Apollo and Pallas Athene. The initial series used images of Greek deities but later coins had images of Indian deities as well. These coins are significant because they carried detailed information about the issuing monarch, the year of issue and sometimes an image of the reigning king. Coins were mainly made of silver, copper, nickel and lead. The coins of the Greek kings in India were bilingual, i.e., written in Greek on the front side and in Pali language (in Kharosthi script) on the back. Later, Indo-Greek Kushan kings of introduced the Greek custom engraving portrait heads on the coins. The coins issued by Kanishka employed only Greek characters.