Watch List notes:

THRACE, Byzantion. Circa 175-150 BC. AR Tetradrachm (37.5mm, 16.80 g, 12h). In the name and types of Lysimachos. Diademed head of the deified Alexander right, with horn of Ammon / Athena Nikephoros seated left, left arm resting on shield, transverse spear in background; monogram to inner left, BY on throne. Marinescu Issue 117, 323 (O139/R311); cf. Müller 172 (stater). VF, dark iridescent tone, polished.