The windowless rooms of Roman buildings required artificial illumination, which was frequently provided by oil lamps. While inexpensive terracotta lamps were widely used, bronze lamps were luxury items produced for wealthier people. The handle of this lamp is adorned with a crescent moon surmounted by a bust of Jupiter, king of the gods, and his companion animal, the eagle, which clutches a thunderbolt (a symbol of the god) in its talons. A knobbed lid tops the container, which would have been filled with olive oil.