Seleukid Kingdom. Seleukos I Nikator. Silver Tetradrachm (17.12 g), 312-281 BC. Seleukeia on the Tigris, ca. 300-281 BC. Head of Herakles right, wearing lion's skin headdress. Reverse: [B]AΣIΛEΩΣ ΣEΛEYKOY, Zeus seated left, holding Nike and scepter; in left field, monogram; below throne, M. SC 119.8c; HGC 9, 121. Well struck in high relief. Lightly toned. EF. Estimate Value $500 - 600