During excavations on the territory of the Ephthalite state, coins from different countries were found

During excavations on the territory of the Ephthalite state, coins from different countries were found. What fact of the economic life of the Ephtalites are we talking about?

The Hephthalite state emerged in the 4th century A.D. on the territory of Central Asia and North India, where the main trade routes passed (the Great Silk Road). The fact that coins of different countries are found here indicates that the Hephthalites were active and successful in trade with other peoples and, possibly, took certain duties from merchants passing through their territories.