Watch List notes:

SELEUKID EMPIRE. Antiochos I Soter. 281-261 BC. AR Tetradrachm (30mm, 16.87 g, 1h). Seleukeia on the Tigris mint. Diademed head right / Apollo, testing arrow and resting hand on bow, seated left on omphalos; monograms to outer left and right. SC 378.3; HGC 9, 128g. VF, lightly toned, some roughness.