Prusias II, king of Bithynia. AR tetradrachm. 183-149 BC. 16.04 g. 

Diademed head of Prusias right. (Diadem is winged)
BASILEWS PROYSIOY, Zeus standing left, holding wreath and sceptre. Eagle on thunderbolt in left field.

M in lower left field.

RecGen 10.1; Kaye 21-23; Paris 12.

Sold by Gorny & Mosch auction 261, Lot 289, March 2019.