License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Kubo Shunman. Japanese White-eyes with Plum Tree and Willow, from Spring Rain Surimono Album (Harusame surimono-jō, vol. 3), ca. 1810. The Metropolitan Museum of Art.