There were Macedonian coins with the image of Herakles from well before Alexander was even born and Philip II made coins with the image of Herakles with the same same portrait as the coins of Alexander

"in the December 2003 Numismatist, Sear wrote, "The myth that the head of Herakles represented a disguised portrait of Alexander himself dates to ancient Greek times. However, in the world of Alexander, there was no such fashion of regal portraiture on coinage, and in any case virtually identical effigies of the hero appeared on the coins of Alexander's predecessors Philip II ... and Perdiccas III."
http://rg.ancients.info/alexander/portrait.html

"in the December 2003 Numismatist, Sear wrote, "The myth that the head of Herakles represented a disguised portrait of Alexander himself dates to ancient Greek times. However, in the world of Alexander, there was no such fashion of regal portraiture on coinage, and in any case virtually identical effigies of the hero appeared on the coins of Alexander's predecessors Philip II ... and Perdiccas III."
http://rg.ancients.info/alexander/portrait.html























