Tetradrachm of Seleukos I, Seleukeia on Tigris
r. 305-281 BCE
Seleucus I Nikator
Greek
Obverse: head of young Herakles wearing lion skin.
Reverse: BASILEOS SELEUKOU, Zeus holding eagle and scepter; to r., monogram; under throne.
Silver
Classical period, Late, to Early Hellenistic