Rome Campgate - Officina Q

Constantine I, AE3, Rome, Officina 4 CONST_ANTINVS AVG High-crested helmet, cuirassed bust right VIRTV_S AVGG Campgate with five rows, three turrets, closed six paneled doors, no star above, top and bottom rows empty blocks P | R in fields RQ in exergue RIC VII, -- Note: Bust type D7 not attested for three turret series in RIC