BITHYNIA. Kalchedon. Trihemiobol or 1/4 Siglos (Circa 340-320 BC).
Obv: Bull standing left, grain ear below.
Rev: KA.
Quadripartite incuse square of mill sail pattern.
SNG Black See 124-126; HGC 7, 519.
Condition: Very fine.
Weight: 1.05 g.
Diameter: 12 mm.