1 Biunx Rooster facing right

Hatria — modern Atri in the Abruzzo region — was an Adriatic colony whose autonomous bronze coinage was produced during a narrow window before Roman monetary consolidation effectively ended local minting across much of Italy. The biunx denomination represents two unciae, placing this piece within the as-based system adopted by several central Italian communities in the third century BC, though Hatria's series is distinctively small and the town's output was never large.

The absence of a Thurlow-Vestergaard reference number is telling — the series sits outside the mainstream of aes grave collecting, and documented specimens are genuinely scarce in the trade.