Watch List notes:

SELEUKID KINGS OF SYRIA. Antiochos I Soter, 281-261 BC. Drachm (Silver, 4.05 g), Aï Khanoum = Alexandria-on-the-Oxus. Diademed head of Antiochos I to right. Rev. BAΣIΛEΩΣ ANTIOΧOY (read outwards from upper left) Head of a horned and bridled horse to right; in field to right, Λ within circle; in emerge, Α. Kritt, SMAK, A1DH-16 (A7/P9 - this coin). Cf. SC 432.3a (but unknown with Α in the exergue). Very rare. Clear and well-struck for the issue. Struck from worn dies, the obverse slightly double-struck, and with a few marks, otherwise, good very fine.