Helena, mother of Constantine I. AE Follis, Siscia mint, 326-327 AD. Obv. FL HELENA AVGVSTA. Diademed and mantled bust right. Rev. SECVRITAS REIPVBLICE. Securitas standing left, holding branch and raising robe; in exergue,•ЄSIS•Є. RIC 204. AE. g. 3.10 mm. 19.00 R. Rare and superb. Dark green patina. Gently smoothed, otherwise EF.