SELEUKID KINGS OF SYRIA. Antiochos II Theos, 261-246 BC. Tetradrachm (Silver, 29 mm, 17.07 g, 6 h), Ekbatana. Diademed head of Antiochos II to right. Rev. ΒΑΣΙΛΕΩΣ ΑΝΤΙΟΧΟΥ Apollo seated left on omphalos, holding three arrows in his right hand, resting left on bow; in inner left field, two monograms; at feet, horse grazing left. HGC 9, 238v. Cf. SC 607 (secondary control not recorded). Very fine.
Because of the previously unrecorded secondary control on this coin, we have submitted an image and details of it to The American Numismatic Society's Seleucid Coins Online at http://numismatics.org/sco/ for inclusion in a future update.