Watch List notes:

THRACE, Byzantion. Circa 240-220 BC. AR Tetradrachm (20mm, 5.56 g, 12h). Antipatros, magsitrate. Wreathed and veiled head of Demeter right / Poseidon seated right on rocks, holding trident and aphlaston; ΠY to left, monogram to right, [A]NTIΠAT[POY] in exergue. Marinescu Issue 10; Schönert-Geiss, Byzantion 1026–36 var. (unlisted dies); SNG Copenhagen 487. Good VF, toned, nice metal. Fine cleaning marks, light die wear and scuff on obverse, double struck on reverse.