License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Yōshū (Hashimoto) Chikanobu. Illustration of the Commanders who Pacified Western Japan, Receiving the Emperor's Gift Cups (Saigoku chinsei shoshō tenpai o tamawaru no zu), September, 1887. The Metropolitan Museum of Art.