Watch List notes:

Seleukid Kingdom. Seleukos I Nikator. 312-281 B.C. AE 20 (20 mm, 8.03 g, 9 h). Uncertain mint. Winged head of Medusa right / ΒΑΣΙΛΕΩΣ ΣΕΛΕΥΚΟΥ, Bull butting right; controls not visible. Cf. SC 21, 152 and 191; HGC 9, 92. VF.