Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. 312-281 BC. AR Tetradrachm (24mm, 17.02 g, 6h). In the name and types of Alexander III of Macedon. Babylon I mint. Struck circa 311-300 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; in left field, MI above thunderbolt; monogram in wreath below throne. SC 82.3f corr. (monogram); Price 3762 corr. (same); HGC 9, 10f. VF, toned.

The monogram on this issue has a pellet within it the rho, which was missed by both Price and SC (the plate coin in Price clearly shows the pellet). As such, this issue should be placed among the varieties of SC 82.2.