Æ20 - Antoninus Pius C I C A D D

Apamea in Bithynia — not to be confused with the far more prominent Apamea in Syria — was a Roman colony whose civic coinage under the Antonines reflects the town's modest but real autonomy in managing local bronze issues. The abbreviation C I C A D D in the legend expands to Colonia Iulia Concordia Apamea Dios Dikaia, a ceremonial title cluster that distinguishes this mint from neighboring Bithynian cities and points to a Julio-Claudian colonial foundation later confirmed under Augustus.

Bithynian civic bronzes of this period were produced for purely local exchange and rarely traveled far from their issuing city.