Has to be a fleet coin for me, biggest decisive maritime battle in the Ancient World. MARCUS ANTONIUS FLEET DENARIUS LEG V11 RSC 34 CRAWFORD 544/20 PRAETORIAN GALLEY LEG VII BETWEEN TROPHIES EX MUSA NUMISMATIC ART CA EX-CNG 3.25 g 17 mm
It's interesting that the portrait changed after only one year, then he died and that was it. I don't recall if there was a reason for the change. (These are very old photos of my examples)