Nomos

Herakleia was founded around 433 BC as a joint Tarentine and Thurian colony, though the two parent cities quickly fell into dispute over its control — Tarentum eventually winning out. The city's coinage, initiated in the late fifth century, borrowed heavily from Tarentine weight standards and iconographic vocabulary, a deliberate political signal about whose orbit Herakleia occupied. This nomos falls within the period of the city's greatest autonomy, before the Oscan pressures and later Roman alliance reshaped its political footing entirely.

The series referenced by HN Italy 1378 is well-attested across major collections, suggesting reasonably robust original mintage for a south Italian Greek issue of this period.