License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Honoré Daumier. Adèlaïde... Il me semble que je vois... la comète! (Adelaide... I think I see the comet!), from "Croquis Parisiens", February 18, 1857. The Metropolitan Museum of Art.