License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anonymous, Italian, Roman-Bolognese, 17th century. Venus and the Dead Adonis (recto); Sketches of Venus and the Dead Adonis; several sketches of kneeling and standing figures (verso), 1696–1770. The Metropolitan Museum of Art.