KINGS OF BITHYNIA. Prusias II Kynegos (182-149 BC). Ae. (19mm, 4.00 g) Nikomedeia. Obv: Draped bust of Dionysos right, wearing ivy wreath. Rev: BAΣIΛEΩΣ / ΠΡΟYΣIOY. The centaur Chiron standing right, playing lyre; monogram to lower right.