License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jacques Callot. Le Feu d'Artifice sur l'Arno (Fireworks on the Arno), from "Les Caprices" Series B, The Nancy Set, 1617–20. The Metropolitan Museum of Art.