Æ25 - Valerian and Gallienus ϹΤΡΑ ϹΩϹΤΡΑΤΟΥ ΚΥΖΙΚΗΝΩΝ / ΝΕΟΚΟ(Ω)

Cyzicus held the title of neokoros — temple warden of the imperial cult — multiple times over, a distinction fiercely competed for among the cities of Asia Minor and awarded by the Roman senate. The magistrate name Sosstratos appearing in the legend anchors this piece to a specific civic administration, though the precise year within Valerian and Gallienus's joint reign cannot be narrowed further without die linkage studies.

The joint titulature reflects the unusual co-rule formalized after Valerian's accession in 253, with Gallienus elevated immediately as Augustus rather than Caesar — a constitutional novelty that provincial mints rendered inconsistently across the Greek east before the cessation of civic bronze coinage in the 260s.