Phrygia, Cotiaeum AE (Bronze, 7.09g, 23mm) Civic Issue, Time of Gallienus (254-268) Diogenos, son of Dionysios, archon.
Obv: ΔHMOC KOTIAEΩN, unbearded, diademed, draped bust of Demos right
Rev: EPI ΔIOΓ ENO V C ΔIONVC IO, A-P/X (across fields), KOTIAEΩN in exergue, Zeus Aetophorus seated left, holding eagle and scepter.
Ref: SNG Cop 319; BMC 25; BMC Munich 318.