Troas, Kolone AR Obol (Silver, 8mm, 0.53g) 4th century BC.

Troas, Kolone AR Obol (Silver, 8mm, 0.53g) 4th century BC.
Obv: Helmeted head of Athena right
Rev: Star within incuse square.
Ref: SNG Arikantürk 426; SNG Kayhan 1583 var. (crescent in field on rev.).

Year: 4th century BC.
Diameter: 8 mm
Weight: 0.53 g
Material: Silver