Septimius Severus, AE27 of Creteia-Flaviopolis, Bithynia AV K L CEP CEVHPOC, laureate head right KRHTIEWN around, FLAOU below Ceres (Demeter) in a biga of serpents (bigis draconum) right. BMC (Pontus, Bithynia etc.) 1; Mionnet, Supp. 5, no. 180. Ancient Coin Art, December 2009