Seleucid, Antiochus I. Tetradrachm; Seleucid, Antiochus I; 281-261 BC, Seleucia on the Tigris, Tetradrachm, 16.83g. SC-379.6b. Obv: Diademed portrait of Antiochus I r., Rx: ??S???OS ???????? Apollo, slight drapery on r. thigh, seated l. on omphalos, holding arrow and resting l. hand on grounded bow; dotted border, control marks in l. and r. fields.. F