Chalkon

Atrax was a minor Thessalian polis on the left bank of the Peneios river, and its bronze coinage is among the least documented of the regional issues — SNG Copenhagen remains the primary reference precisely because so little subsequent scholarship has focused on the city's numismatic output. Thessalian bronze of this period was strictly local in circulation, serving market exchange within the immediate agricultural territory rather than interregional trade dominated by the silver coinages of Larissa and Pharsalos.

The mid-fourth century date places production before Philip II of Macedon's reorganization of Thessalian political structures following 344 BC, when Macedonian hegemony effectively curtailed independent civic coinage across the region.