Watch List notes:

THRACE, Byzantion. Circa 387/6-340 BC. AR Tetradrachm (21.5mm, 14.98 g). Chian standard. Bull stepping right on dolphin right; monogram to lower right / Quadripartite incuse square with stippled quarters. Schönert-Geiss, Byzantion 668–9 (V17/R– [unlisted rev. die]); CN Online Type 5891; HGC 3, 1386 var. (obv. type left). Iridescent tone, minor die wear, cleaning scratches. Near EF. Extremely rare with type right, only two noted by Schönert-Geiss (including the two in CN Online), two in CoinArchives (all are from the same obv. die).