Tetradrachm Kugelreiter Type

The "Kugelreiter" (ball-rider) type belongs to the Celtic silver coinage produced by tribes occupying the eastern Alpine region, an area the Romans would eventually designate as the province of Noricum. These coins derive ultimately from the Philip II tetradrachm tradition, but by the time this type was being struck the prototype had been abstracted beyond recognition through generations of stylistic drift — a process numismatists sometimes call "devolution" though it arguably reflects deliberate local aesthetic choices rather than degradation.

Kostial's corpus remains the principal reference for Norican Celtic coinage. Attribution to "West Noricum" is a modern scholarly convention based on find-spot distribution, not any ancient political designation.