License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
John Gibson. Sketches of seven statues: Faith, Paolo and Francesca di RImini, Charity, Ceres, Heavenly Venus, Dancer, and Sleeping Cupid, ca. 1850. The Metropolitan Museum of Art.