Constantine I, AE3, 327, Arelatum, Officina 2CONSTAN_TINVS AVGPearl-diademed head rightVIRTV_S AVGGCampgate with six rows, four turrets, open doors with two panels, each with one or two pellets, star above, top and bottom rows empty blocksS | F across fields ARLS in exergue 19mm x 20mm