Roman Imperial
Helena, Augusta (324-328/30 AD). Kyzikos.
AE Follis (16.5mm 3.43g)
Obv: FL HELENA AVGVSTA. Diademed and mantled bust right.
Rev: SECVRITAS REIPVBLICE / SMKE Securitas standing left, lowering branch and raising robe with right hand.
RIC VII Cyzicus 28