1859
National Gallery of Art, 1500
National Gallery of Art, 1918
National Gallery of Art, 1931
National Gallery of Art, 1938
National Gallery of Art, 1926
National Gallery of Art, 1940
National Gallery of Art, 1996
National Gallery of Art, 1999
National Gallery of Art, 1941
National Gallery of Art, 1914
National Gallery of Art, 1843
National Gallery of Art, 1966
![Giangaleazzo Maria Sforza, 1469-1494, 6th Duke of Milan 1476 [obverse]](https://api.nga.gov/iiif/7a935ba3-407a-40c3-a496-43e302fe637f/full/843,/0/default.jpg)
![Untitled [trial proof of 1st state]](https://api.nga.gov/iiif/07e4710e-ac4e-4962-9042-7f34dd36dc1c/full/843,/0/default.jpg)
