Constantine I, AE3, 325-326, Arelatum, Officina 1CONSTAN_TINVS AVGLaureate head rightVIRTV_S AVGGCampgate with nine rows, four turrets, open doors with two pellets in each panel, star above, top and bottom rows empty blocksPA crescent RL in exergue19mm x 21mm, 2.71g