Watch List notes:

Helena, mother of Constantine Follis Siscia 326-327, Æ 18mm., 3.57g. Diademed and mantled bust r., wearing necklace. Rev. Securitas standing l., lowering branch and raising robe with r. hand; ESIS(double crescent) in exergue. C 12. RIC 218.

Dark green patina, About Extremely Fine.

From the E.E. Clain-Stefanelli collection

In addition, winning bids of EEC clients for this coin are subject to a 5% fee on hammer price as a reimbursement for import duty paid to HMRC.