Bronze follis, 24mm, 5.82gm, issued AD 308-311 Nicomedia mint.
Obv: IMP C GAL VAL MAXIMIANVS PF AVG, Laureate head facing right.
Rev: GENIO AVGVSTI CMH (SMNĪ in ex.), Genius standing left holding patera and cornucopiae.
References: Sear 14508, RIC 54a.