Helena, mother of Constantine I, first wife of Constantius I  (born ca. 248 A.D. - died 330 A.D.) -  AE4 - 16.72mm, 1.59g
Obverse - FL IVL HE-LENAE AVG Helena, her pearl-diademed and mantled bust right, wearing necklace.	Reverse - PAX PVBLICA dot CONSE in Exergue Pax standing left, holding branch and transverse scepter
Minted posthumously under Constantius II at officina E in Constantinopolis (Istanbul, Turkey) between 337 and 340 A.D. Reference: Kent, J.P.C.,"Roman Imperial Coinage", Volume 8 (RIC), Constantinople, p449, nr 33, obverse H1/M. Carson, R.A.G., Hill, P.V., & Kent, J.P.C., "Late Roman Bronze Coinage" (LRBC),  Part I,  p25, nr. 1046, obverse 6cW Failmezger, V., "Roman Bronze Coins From Paganism To Christianity 294-364 A.D." (Fm), nr 384H Sear, D.R., "Roman Coins and their Values" (Sear RCV Millennium Edition), Volume 5, p120, nr. 17497 Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC2),  p888, nr.116 (B1, O2, R1, T1, M04, CONSE dot) Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC II-digital), p733, nr.116 (B1, O2, R1, T1, M04, CONSE dot) Van Meter, D., "Handbook of Roman Imperial Coins" (VM), p293, nr 4. Kampmann, U., "Die Münzen der römischen Kaiserzeit" (K, 2e Auflage), p426, nr. 139.5. Quality: Fine Rarity: C (Common)