Coins from Kingdom of Bithynia
The Kingdom of Bithynia was a realm in northwestern Asia Minor, founded in the early third century by Zipoetes, chieftain of the Bythyni - a Thracian tribe.

The Kings of Bithynia founded Nicomedia, which soon rose to great prosperity, and for a while the kingdom of Bithynia had a considerable standing and influence among the minor monarchies of Anatolia. But the last king, Nicomedes IV, was unable to stand against Mithridates VI of Pontus. After being restored to his throne by the Roman Senate, he bequeathed his kingdom through his will to the Roman republic (74 BC).
Kingdom of Bithynia
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An AE unit struck 182-149 BC in Bithynia
Obverse: Wreathed head of Dionysos right

Reverse: Centaur advancing right, playing lyre; monogram below raised foreleg

Diameter: 21 mm
Die Orientation: 12 H
Weight: 5.73 g
Brown patina, about VF
RG 26; SNG Copenhagen 639; HGC 7, 629.
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An AE unit struck c. 180-150 BC in Nicomedia
Obverse: head of Dionysos right wearing ivy-wreath

Reverse: Centaur Chieron walking right, wearing cloak, playing lyre BAΣIΛEΩΣ ΠPOYΣIOY (NΦ)

Diameter: -
Die Orientation: -
Weight: -
No notes for this coin
SNG Cop 640; BMC Pontus p. 210, 8; Rec Gen II.3 p. 225, 26; SNGvA 256 var. (monogram); HGC 7 629; SGCV II 7266