Æ33 - Gordian III ΠΟΜΠΗΙΟΠΟΛΕΙΤΩΝ ϚΤ ΑϚ

Pompeiopolis in Cilicia took its name from Pompey the Great, who refounded the city around 64 BC following his campaign against the pirates of the eastern Mediterranean — a military operation that had made the Cilician coast one of Rome's most strategically pressing problems. By the reign of Gordian III, the city had been issuing civic bronze for over two centuries, and the dated formula in the legend, ϚΤ ΑϚ, places this piece in the city's local era year 336, cross-referenced to 240–241 AD.

The local era dating system is itself the useful detail here: Pompeiopolis reckoned from roughly 66/65 BC, the approximate date of Pompey's settlement.