1987
National Gallery of Art, 1595
National Gallery of Art, 1924
National Gallery of Art, 1976
National Gallery of Art, 1903
National Gallery of Art, 1981
Corcoran Gallery of Art, 1887
National Gallery of Art, 1936
National Gallery of Art, 1889
National Gallery of Art, 1770
National Gallery of Art, 1988
National Gallery of Art, 1400
![Figure 5 [trial proof 1]](https://api.nga.gov/iiif/6ec8e0d8-b9cf-4a66-9ba0-03ea1c975732/full/843,/0/default.jpg)
![Sixtus IV (Francesco della Rovere, 1414-1484), Pope 1471 [obverse]](https://api.nga.gov/iiif/3a538c6d-adea-420f-bbcc-b241c54384a3/full/843,/0/default.jpg)