AR Tetradrachm [17,22 gm, 27,2 mm]. Seleucia on the Tigris. Struck circa 270-267 BC. Diademed head right / ΒΑΣΙΛΕΩΣ ΑΝΤΙΟΧΟΥ, Apollo seated left on omphalos, holding bow in his right hand; to left and right, monogram. CSE 952; ESM 155, Type 1; SC 379.3. SNG Spaer 290. Some marks, toned gVF.