License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Ariwara Narihira, from the “Fujifusa Version” of Thirty-six Poetic Immortals (Fujifusa-bon Sanjūrokkasen emaki). first half 15th century. The Metropolitan Museum of Art.