License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anonymous. The Trophy of Constantine, with Victory at left crowning the emperor with a laurel, behind them a bounty of arms, armor, prisoners, and Maxentius' head on a stick, ca. 1650–68. The Metropolitan Museum of Art.