Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. 312-281 BC. AR Tetradrachm (26mm, 17.05 g, 2h). Seleukeia in Pieria mint. Struck circa 300-281 BC. Head of Herakles right, wearing lion skin / Zeus Nikephoros seated left; monogram in left field, KH below throne. SC 29.1 var. (unlisted secondary control); Le Rider, Antioche – (A2/P– [unlisted rev. die]); HGC 9, 16d. Near EF, toned, a few die breaks. Unpublished and very rare with these letters below throne, none in CoinArchives.