Chalkon

Adramyttion — modern Edremit on Turkey's Aegean coast — was a Mysian city with a complicated fourth-century history, having been resettled by Athenian cleruchs around 422 BC and later falling under Persian satrapal control before Macedonian expansion reorganized the entire region. Bronze fractional issues like this one emerged as Greek cities increasingly needed low-denomination coinage to facilitate small-scale local exchange, a practical consequence of silver's unsuitability for everyday market transactions. The chalkon was among the smallest units in this bronze hierarchy.