The image of Jupiter is recognisable in this bronze statuette: he is naked, or almost (with only a short cloak over his shoulder), and his hair and beard are thick. But another object confirms his identity: the thunderbolt that he holds in his right hand.
This object could be represented by a bundle of lightning flashes or a twisted stick. It symbolised Jupiter’s control over the celestial elements: the king of the gods could instantly strike down anyone who offended him. The thunderbolt is one of Jupiter’s most common attributes, together with the sceptre (a royal symbol).