Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. 312-281 BC. AR Tetradrachm (29mm, 17.16 g, 11h). Seleukeia in Pieria mint. Struck circa 300-281 BC. Head of Herakles right, wearing lion skin / Zeus Nikephoros seated left; monogram in left field, KP below throne. SC 29.1b; Le Rider, Antioche, obv. die A1; HGC 9, 16d. Good VF, lightly toned.

From the B. H. Webb Collection. Ex Classical Numismatic Group Electronic Auction 131 (18 Jan 2006), lot 99.