License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Sangallo family. Recto: Temple Types: in Antis and Prostyle (Vitruvius, Book 3, Chapter 2, nos. 2, 3); Verso: Temple Types: Peripteral (Vitruvius, Book 3, Chapter 2, no. 5)., 1530–45. The Metropolitan Museum of Art.