License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Kitagawa Utamaro. “The Poet Ariwara no Narihira (825–880) and Ono no Komachi,” from the series Five Colors of Love for the Six Poetic Immortals (Goshiki-zome rokkasen), ca. 1798. The Metropolitan Museum of Art.