Bithynia, Dia, AE 20 (bronze, 8,46 g, 20 mm) ca. 85-65 BC Obv: Diademed head of Zeus right Bithynia, Dia, AE 20 (bronze, 8,46 g, 20 mm) ca. 85-65 BC Obv: Diademed head of Zeus right
Rev: Eagle standing left on thunderbolt, head reverted, monogram in left field; ΔIAΣ in exergue.
Ref: SNG v Aulock 6930