License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Charles Grignion, I. Lord Oxmington Repelling Lismahago's Challenge to Single Combat, an illustration from Tobias Smollett's "The Expedition of Humphry Clinker" (London, 1793), Vol. 1, March 30, 1793. The Metropolitan Museum of Art.