License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anonymous, Italian, 18th century. Design for a Festival Monument: Base Holds a Small Orchestra; Triumphal Arch Surmounted by a Cartouche-Decorated Pyramid with Figure of Fame, below, a Royal Crown, 18th century. The Metropolitan Museum of Art.