Constantine I Billon Centenionalis RIC 121 Nicomedia

Billon Centenionalis (19mm 3.3g) Struck AD 348-351 Nicomedia

Obv: CONSTANTINVS AVG Laureate head right

Rev: PROVIDENTIAE AVGG Campgate with two turrets, one star above, seven layers open door MNA in exergue

RIC VII 121