License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Myōchin Muneakira. Armor (<i>Nimaidō Gusoku</i>), armor, dated 1717; helmet, late 16th century; restorations, 2015. The Metropolitan Museum of Art.