Seleucid, Antiochus I. Tetradrachm; Seleucid, Antiochus I; 280-261 BC. Seleucia on the Tigris, Tetradrachm, 17.07g. SC-379.3a. Obv: Diademed head of Antiochus I r. Rx: ??S???OS / ??? - ????? Apollo seated l. on omphalos, holding arrow and resting l. hand on grounded bow; monograms AP and HP in outer l. and r. fields respectively.This coin is rather common in low grade, but excessively rare in Mint State. High relief. MS