Abstrakt: In the Carpathian Basin, the only coinage made by purely following Roman designs and based on their monetary standards is related to the Eravisci. The exact date of the coinage is still a matter of discussion, but the Eraviscan coins may have begun during the last decades of the 1st century BC at the earliest. The Eraviscan coinage was more probably politically motivated than economically, with their purpose perhaps to finance Eraviscan troops allied with the Romans, for instance in the war planned against Maroboduus. The coinage may perhaps have had a later phase after the abandonment of the oppidum on Gellért Hill. In this phase, very “odd” coins were minted somewhere in the edge of the Eraviscan territory. Recently, some imitations of Eraviscan denarii came to light north of the Danube, e.g. the Czechy hoard. They are thin, poorly minted coins of half weight and strongly stylized imagery.
Melinda Torbágyi and István A. Vida, "Some Remarks on Eraviscan Coinage", NN-ZN 15, 49–64 (2020)