BITHYNIA. Kalchedon. Julia Domna (Augusta, 193-211). Ae. Obv: YOVΛΙΑ AVΓOVCTA. Diademed and draped bust right. Rev: KAΛXAΔONIΩN. Lyre. Recueil Général 302, 80. Condition: Very fine. Weight: 3.40 g. Diameter: 16.84 mm.