1997
National Gallery of Art, 1954
National Gallery of Art, 1893
Corcoran Gallery of Art, 1803
National Gallery of Art, 1855
National Gallery of Art, 1457
National Gallery of Art, 1949
National Gallery of Art, 1892
National Gallery of Art, 2006
Corcoran Gallery of Art, 1955
National Gallery of Art, 1900
National Gallery of Art, 1950
National Gallery of Art, 1924
![Study of a Rock [verso]](https://api.nga.gov/iiif/101a64f4-b845-4a7d-8271-65cf166514a5/full/843,/0/default.jpg)
![Galeazzo Maria Sforza, 1444-1476, Count of Pavia [obverse]](https://api.nga.gov/iiif/66981274-18d5-4eb3-98ae-20104d168afc/full/843,/0/default.jpg)
![No Man Is an Island [reverse]](https://api.nga.gov/iiif/adfcf535-127b-4e74-82ff-2231dd72bb08/full/843,/0/default.jpg)
