Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. 312-281 BC. AR Tetradrachm (20mm, 17.09 g, 2h). In the name of Alexander III of Macedon. Karrhai mint. Struck circa 310-290 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; in left field, die erasure (crescent removed in die) above monogram; monogram below throne. SC 41.3b; Price 3816A; HGC 9, 10a. VF, a few marks.

Price 3816A does not note the erasure mark, but it is present on all examples, as these were dies originally engraved as Price 3816, where the crescent is present.