Æ - Nicomedes I or Nicomedes II Nikaia

Nikaia — modern İznik — served as a royal mint for the Bithynian kingdom through much of the third century BC, a period when the dynasty was actively consolidating power against both Seleucid pressure from the east and Galatian raiding from the north. The attribution to either Nicomedes I or his successor reflects a genuine scholarly impasse: the SNG Black Sea range spans both reigns, and without a royal name inscribed, die-link studies remain the only practical path to a tighter attribution.

Nicomedes I famously invited the Galatians into Anatolia around 278 BC as mercenary allies — a decision that reshaped the region's political geography for generations.