License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Galeazzo Alessi. Design for an Polygonal Tabernacle, with Obelisks and a Pediment Surmounted by Three Figures Supporting a Tempietto-like Structure, 1512–72. The Metropolitan Museum of Art.