Kingdom of Bithynia, Prusias II Cynegos AR Tetradrachm. (33mm, 17.0 g) Circa 182-149 BC. Head right, wearing winged diadem / Zeus Stephanophoros standing left, holding sceptre; ΒΑΣΙΛΕΩΣ to right, ΠΡΟΥΣΙΟΥ to left, eagle standing left on thunderbolt above monogram in inner left field.