License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anonymous, Italian, 16th century. Figure on Seagoat; Man Carving Wing, from "Ex Antiquis Cameorum et Gemmae Delineata", published ca. 1599–1622. The Metropolitan Museum of Art.