337-340 AD. Posthumo issue, Trier mint. Obv: FL IVL HELENAE AVG legend with draped bt right. Rev: PAX PVBLICA legend with Pax standing left holding olive-branch and transverse sceptre; mintmark •TRP• in exergue. RIC viii, p.143; LRBC I, 112; Sear 17493. 1.62 grams. Old collection, with collector envelope. Property of a Kent, UK, collector. Issued by the three sons of Constantine I in honour of their deceased grandmother. [No Reserve]