Seleucid, Antiochus I. Tetradrachm; Seleucid, Antiochus I; 281-261 BC, Seleucia on the Tigris, Tetradrachm, 17.03g. SC-379.3a. Obv: Diademed head of Antiochus I r. Rx: ΒΑΣΙΛΕΩΣ - ΑΝΤΙΟΧΟΥ Apollo, seated l. on omphalos, holding arrow and resting l. hand on grounded bow; monograms in outer l. and r. fields.. aVF