License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Katsushika Hokusai 葛飾北斎. The Mountains of Husband and Wife (Onyo imoseyama) 阥阦妹背山, 1810, first month (Bunka 7. The Metropolitan Museum of Art.