Helena, mother of Constantine I (Augusta 324-330). AE Follis, Treveri (Trier) mint, struck under Constantine I, 326 AD. Obv. FL HELENA AVGVSTA. Diademed and mantled bust right, wearing necklace. Rev. SECVRITAS REIPVBLICE: Securitas standing facing, head left, holding olive branch and lifting dress; in exergue, STR-pellet-in-crescent. RIC VIII 481. 3.17 g. 19.00 mm. VF.