Watch List notes:

HELENA, mother of Constantine I (307-337 A.D.), AE follis, Alexandria Mint, issued 324-5 A.D. (2.40 g), obv. draped bust to right around FL HELENA AVGVSTA, rev. SECVRITAS REIPVBLICE, SMALA in exergue, Securitas standing left, lowering branch, (S.16627, RIC 38). Deep brown toning, mild surface pitting, nearly extremely fine and very rare.