License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Ryūryūkyo Shinsai. Dance Robe and Koto (Zither) Representing the Wealthy Man of Yahagi from the Jōruri Play Ushiwaka (Minamoto no Yoshitsune), probably 1810. The Metropolitan Museum of Art.