Constantine I, AE3, 328-329, Siscia, Officina 3 CONSTAN_TINVS AVG Laureate head rightPROVIDEN_TIAE AVGGCampgate with seven rows, two turrets, no doors, star above, top row arches and dots in blocks, bottom row empty blocks GSIS double crescent in exergue 17mm x 20mm, 3.31g