License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Orazio Scarabelli. Third Triumphal Arch at the ‘Canto dei Carnesecchi’, from an Album with Prints recording the Festivities and Decorations organized in Florence for the 1589 Wedding of Archduke Ferdinand de' Medici and Christine of Lorraine, 1589–92. The Metropolitan Museum of Art.