P. Fonteius P. f. Capito. Silver Denarius (3.92 g), 55 BC. Rome. P FONTEIVS P F CAPITO III VIR, helmeted and draped bust of Mars right, trophy over shoulder. Reverse: (MN) FO(NT) TR MIL, soldier on horseback rearing right, thrusting his spear at a Gallic enemy who is about to slay an unarmed person; to lower right, helmet and shield. Crawford 429/1; Sydenham 900; Fonteia 17. Unusually well centered. Lustrous and delicately toned. NGC photo cert grade Ch XF; Strike: 5/5, Surface: 4/5. Estimated Value $250 - UP 

The reverse commemorates a valorous deed of one Manius Fonteius, but the precise circumstances are lost to us. Both Crawford and Harl suggest he may have served under another ancestor, Marcus Fonteius, who was governor of Gallia Narbonesis from 76-73 BC.
Ex The William Oldknow Collection.