Bithynia, Cius. Herennia Etruscilla. Augusta, A.D. 249-251. AE triassarion (24.3 mm, 6.61 g, 7 h). EPENNIA ETPOYCKIΛΛA AY C, diademed and draped bust of Herennia Etruscilla right / KAINΩN, Hygieia standing right, feeding serpent from patera held in her arms. RPC IX, 230; Rec Gen 117; SNG von Aulock -. VF, attractive green patina. Extremely Rare, only one specimen known to RPC, finest known.