Constantine I, AE3, 327, Arelatum, Officina 2CONSTAN_TINVS AVGPearl-diademed head rightPROVIDEN_TIAE AVGGCampgate with seven rows, two turrets, no doors, star above, top and bottom rows empty blocksS | F across fieldsARLS in exergue 19mm x 21mm, 3.36g