Watch List notes:

Helena. Augusta, AD 324-328/30. Æ Follis (20mm, 3.69 g, 6h). Treveri (Trier) mint, 1st officina. Struck under Constantine I, AD 327-328. Diademed and mantled bust right, wearing pearl necklace / Securitas standing left, holding branch pointing downward and raising pallium; PTRE. RIC VII 508; LRBC 41. Toned silvering. EF.