License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Pietro Santi Bartoli. Two Biblical Scenes: The Apostles Showing Christ their Swords at left, after Raphael's Stanza della Segnatura and the Pope Celebrates Mass with Four Priests,after Raphael's Stanza di Eliodoro, from a series of 15 plates depicting Raphael's works for the Vatican stanze and the Sistine Chapel tapestries, 1650–70. The Metropolitan Museum of Art.