Greek coins
Bithynia, Dia, Time of Mithradates VI Eupator (ca 85-65 BC) AE
Obv: Laureate head of Zeus to right
Rev: ΔIAΣ - Eagle standing left on thunderbolt, wings spread and head to right; monograms flanking.
Ref: Callataÿ pl. XLIX, B; SNG BM Black Sea 1560–5 var. (no monogram to right); SNG von Aulock 347; HGC 7, 453.

Weight:8,2 gr
Diameter:19,2 mm