Clearly Roman Republican denarius. I am certain others here can give you the exact attribution. Head of Roma, chariot reverse. Concentrate on the moneyer to attribute, as TONS of RR coins had Roma/chariot on the coin.
Cn. Cornelius Lentulus Clodianus, AR Denarius, Rome, 88 BC; Helmeted bust of Mars seen from behind, with head turned to r., spear and sword over shoulders, Rv. Victory in biga r., holding reins and wreath; in ex. CN LENTVL. Crawford 345/1; Cornelia 50; Sydenham 702
