Watch List notes:

Seleukid Empire, Seleukos I Nikator Æ 20mm. Uncertain mint 19 (perhaps Baktra?), circa 290/86-281 BC. Head of Dioskouros to right, wearing wreathed pilos; monogram behind, all within dotted border / Forepart of horned horse to right; ΒΑΣΙΛΕΩΣ ΣΕΛ[ΕΥΚΟ]Υ behind, anchor to upper left, monogram to upper right: all within dotted border. SC 269.1; HGC 9, 87. 5.87g, 20mm, 8h.

Very Fine. Very Rare.

A similar specimen was recently auctioned for CHF 850 at Nomos AG, Obolos 15, lot 495.