Watch List notes:

Prusias II, 183 – 149. Tetradrachm 183/149, AR 16.86 g. Head with winged diadem r. Rev. ΒΑΣΙΛΕΩΣ / ΠΡΟΥΣΙΟΥ Zeus standing l., holding wreath in r. hand, sceptre in l.; in inner l. field, eagle above thunderbolt / monogram. Recueil Géneral II, p. 220, 10 and pl. 30, 3. SNG von Aulock 251 (this coin).
Rare. A lovely portrait of fine Hellenistic style, old cabinet tone and about extremely fine

Ex Leu sale 50, 1990, 147. From the Harald Salvesen collection.