Axis Mundi Ancient Coins Roman Republican Silver Denarius of L. Licinius Crassus and Cn. Domitius Ahenobarbus Commemorating the Establishment of Narbo ( The First Roman City in Celtic Gaul ) Roman Republican silver Denarius of L. Licinius Crassus and Cn. Domitius Ahenobarbus. Rome 118 BC Obverse: Helmeted head of Roma facing right. L. POMPONI CNF around. Reverse: Naked Celtic warrior, brandishing a spear and holding a shield and carnyx, driving a racing biga right... L. LIC. CN. DOM. in exergue. 20 mm, 3.8 gr Sear 158