License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Daniël Johannes Torman Kerkhoff. Popular Celebrations in Dam Square, Amsterdam, on 4 March 1795, marking the erection of the Liberty Tree and the success of the Batavian Revolution, 1795 or after. The Metropolitan Museum of Art.