Helena, mother of Constantine I. AE Follis, 325-326 AD. Heraclea mint. Obv. FL HELENA - AVGVSTA. Diademed bust right. Rev. SECVRITAS REIPVBLICE. Securitas standing left, holding branch; behind, star. In exergue, SMHE. RIC 110 (R3). AE. g. 3.10 mm. 20.00 R. EF.