Kings of Bithynia. Prusias II Cynegos (182-149). Ae.(21mm-6.26g). Draped bust of Dionysos right, wearing ivy wreath / BAΣIΛEΩΣ ΠΡΟYΣIOY. The centaur Chiron standing right, playing lyre. Control: to lower right, monogram. SNG Copenhagen 636; BMC 12-13; HGC 7, 629.