Bronze follis, 26mm, 7.36gm, issued AD 308-311 Nicomedia mint.
Obv: IMP C GAL VAL MAXIMIANVS PF AVG, Laureate head facing right.
Rev: GENIO AVGVSTI CMH (SMNA in ex.), Genius standing left holding patera and cornucopiae.
References: Sear 14508, RIC 54a.