Drachm Simmering and Réte Type

The Boii who struck this type were not the Bohemian Boii familiar from Caesar's accounts but a related group occupying the Danubian basin, pushed progressively eastward by the late second century BC. The Simmering and Réte classification groups coins found concentrating around those findspot regions, a typological convenience that reflects genuine geographic clustering in the archaeological record rather than a minting distinction.

By the mid-first century BC, Boian political power in the region had collapsed under pressure from the Dacians under Burebista, who effectively destroyed the confederation around 60–50 BC. Coins of this type found after that horizon were likely buried hoards, not active currency.