Tetradrachm

Sermyle was a small Chalcidian colonial settlement on the Sithonian peninsula of Macedon, and its coinage survives in such limited numbers that the city's precise civic history remains poorly reconstructed. The HGC lists this type with considerable rarity, and examples appear almost exclusively in Balkan hoard contexts, suggesting tight regional circulation rather than any broader Aegean trade use.

The weight standard aligns with the Thraco-Macedonian heavy silver tradition of the early fifth century, distinct from the Attic standard gaining ground farther south at the same time.