The portrait on the obverse of this denarius is of Pompey the Great, although the coin was minted under his son Sextus: Click here for my writeup.
Ummm, am I allowed to bring-in Big Daddy Pompey's "son" (Sextus) ... => sure, why not, eh? Sextus Pompey, Son of Pompey the Great, AR Denarius (Sicily, Messana) 42-40 BC Diameter: 18 mm Weight: 3.5 grams Obverse: MAG PIVS IMP ITER, galley adorned with aquila, sceptre and trident before the Pharos (Lighthouse) of Messana, decorated with a statue of Neptune Reverse: PRÆF CLAS ET ORÆ MARIT EX S C, the monster Scylla, her torso of dogs and fishes, wielding a rudder as a club