License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Fukuchi Hakuei 福智白瑛. Collection of Thirty-six Kyōka Poems (Roku roku kyōka sen) 六々狂歌撰, 1814, January (Bunka 11). The Metropolitan Museum of Art.