Æ21 - Trajan COS III D D

Apamea in Bithynia — not to be confused with the far more prominent Apamea in Syria — was a Roman colony with the right to strike local bronze coinage under the early emperors. The COS III designation places this issue within Trajan's third consulship, held from 100 AD onward, offering a tighter date range than the reign alone provides. The D D notation, standing for decreto decurionum, confirms the issue was authorized by the town council rather than imperial directive — a distinction that reflects the genuine, if limited, civic autonomy retained by such colonial communities under Roman administration.