Seleukos I Nikator AR Tetradrachm - Babylon I mint. Struck in the name of Alexander III of Macedon, circa 311-300 BC.
Size:  26mm  Weight:  17.06 grams
Obverse:  Head of Herakles right, wearing lion skin
Reverse: BASILEWS ALEXANDROU, Zeus Aetophoros seated left; in left field, monogram in wreath; H below throne.

SC 82.6; Price 3704.