Silver drachm, 17mm, 4.06gm, issued 311-305 BC Babylon mint.
Obv: Head of Herakles right wearing lion skin headress.
Rev: AΛEΞANΔPOY, Zeus enthroned left holding eagle and sceptre, inverted anchor under eagle, MA monogram under throne.
References: see Sear 6730, HGC 26a, SC 97.3.
Issued in Alexander's name under Seleucus I.