SELEUKID EMPIRE. Antiochos I Soter. 281-261 BC. AR Tetradrachm (28.5mm, 16.89 g, 3h). Seleukeia on the Tigris mint. Diademed head right / Apollo, testing arrow and resting hand on grounded bow, seated left on omphalos; monograms to outer left and outer right. SC 379.6a; HGC 9, 128g. Toned. Fine.