Æ27 - Antoninus Pius ΕΠΙ ΠΡΥΤΑΝΕΩϹ ΑΤΤΑΛΟΥ ϹΥΝΝΑΔΕΩΝ

Synnada, a Phrygian city best known in antiquity as the source of marmor Phrygium — the purple-veined white marble prized by Roman emperors for palace decoration — issued civic bronzes under the authority of a locally elected prytanis. The inscription naming Attalos in this capacity is the coin's primary historical document: prytaneis served annual terms, making each named magistrate a fixed chronological anchor within a city's coinage sequence.

Synnada held conventus jurisdiction, meaning Roman magistrates traveled there to hear provincial legal cases — a status that brought prestige and presumably the civic confidence to issue coinage under named officials throughout the Antonine period.