License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Utagawa Hiroshige. The Yaozen Restaurant, San’ya (San’ya, Yaozen), from the series A Collection of Famous Restaurants of Edo (Edo Kōmei Kaitei Zukushi), ca. 1838–40. The Metropolitan Museum of Art.