Kings of Thrace. Byzantion. Macedonian. Lysimachos 305-281 BC.
Tetradrachm AR

mm, g

Diademed head of Alexander the Great to right with horn of Ammon over his ear / ΒΑΣΙΛΕΩΣ ΛΥΣΙΜΑΧΟΥ, Athena seated left, holding Nike, crowning the king's name, in her right hand and leaning with her left arm on shield decorated with gorgoneion; to inner left, monogram; on throne, BY; in exergue, ornamented trident to left.

very fine

Marinescu Issue 154.