Seleukid Kingdom. Antiochos II Theos. 261-246 B.C. AR tetradrachm (29.3 mm, 16.56 g, 2 h). Seleukeia on the Tigris. Diademed head right / BAΣIΛEΩΣ ANTIOXOY, Apollo seated left on omphalos, holding arrow and bow; monogram to left and right fields. SC 587.1a. aVF.