License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Shimokōbe Shūsui 下河辺 拾水. A Thousand Cranes and How to Fold Them (Senbazuru orikata) 千羽鶴折形; 秘伝千羽鶴折形, 1797. The Metropolitan Museum of Art.