License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anonymous, French, 16th century. Unidentified, Composite base, elevation; Temple of Concordia, Composite base, elevation; Unidentified, Composite base, elevation (recto) blank (verso), ca. 1540–60. The Metropolitan Museum of Art.