1952
National Gallery of Art, 1944
National Gallery of Art, 1480
National Gallery of Art, 1962
National Gallery of Art, 1808
National Gallery of Art, 1968
National Gallery of Art, 1600
National Gallery of Art, 1940
National Gallery of Art, 1936
National Gallery of Art, 1775
National Gallery of Art, 1939
National Gallery of Art, 1981
National Gallery of Art, 1967
![Giangaleazzo Visconti, First Duke of Milan [obverse]](https://api.nga.gov/iiif/8a5a4660-6755-4065-aef6-facd826666d4/full/843,/0/default.jpg)
![Watchman [trial proof]](https://api.nga.gov/iiif/2399385b-51f7-4189-90e9-5f1cc86c1e68/full/843,/0/default.jpg)