Helena, mother of Constantine the Great AD 307-337, AE Follis (18 mm, 3.04 gram) Trier AD 326FL HELENA AVGVSTA Mantled and diademed bust r.
SECVRITAS REIPVBLICAE; In ex: PTR-dot in crescent; Securitas stg.l., lowering branch, raising robe with r.hand
RIC 481. Good VF
Bought from Sparkasse Trier for 117 DM.