1903–1970
National Gallery of Art, 1468
National Gallery of Art, 1934
National Gallery of Art, 1936
National Gallery of Art, 1891
National Gallery of Art, 1612
National Gallery of Art, 1497
National Gallery of Art, 1739
National Gallery of Art, 1837
National Gallery of Art, 1997
National Gallery of Art, 1852
National Gallery of Art, 1940
National Gallery of Art, 1972
![Frederick III, 1415-1493, Holy Roman Emperor 1452 [obverse]](https://api.nga.gov/iiif/dd5a1356-a434-4f60-8c1c-bc560bf875d2/full/843,/0/default.jpg)
![Lodovico Maria Sforza, called il Moro, 1451-1508, 7th Duke of Milan 1494-1500 [obverse]](https://api.nga.gov/iiif/035802a4-fd77-4bed-ab54-4558fa9a1a1d/full/843,/0/default.jpg)
