License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Tosa Mitsuyoshi. “An Imperial Excursion” (Miyuki), “A Boat Cast Adrift” (Ukifune), and “The Barrier Gate” (Sekiya), mid-16th–early 17th century. The Metropolitan Museum of Art.