Bithynia, Kios, Hemidrachm. Poseidonios, magistrate. Circa 350-300 BC.
Obv: KIA.Laureate head of Apollo right.
Rev: ΠOΣEI / ΔΩNIOΣ.Prow of galley left, decorated with star.
SNG von Aulock 503 / SNG Copenhagen 377.
Silver.
Weight: 2.49 gr.
Diameter: 14.3 mm.