Constantine I, AE3, 327, Arelatum, Officina 3CONSTAN_TINVS AVG Laureate head rightVIRTV_S AVGGCampgate with six rows, four turrets, open doors with three panels, each with two pellets, star above, top and bottom rows empty blocks, pellets scattered randomly through blocks in various rowsS | F across fields ARLT in exergue 21mm x 22mm