License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Thomas Nast. A Group of Vultures Waiting for the Storm to "Blow Over"–"Let Us Prey" (from "Harper's Weekly," vol. 15, p. 889), September 23, 1871. The Metropolitan Museum of Art.