License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Thomas Rowlandson. How to Vault in the Saddle or a New Invented Patent Crane for the Accomodation or Rheumatic Rump'd Rectors, December 30, 1813. The Metropolitan Museum of Art.