1610–1664
National Gallery of Art, 1642
National Gallery of Art, 1849
United States Government, 1938
National Gallery of Art, 1800
United States Government, 1935
National Gallery of Art, 1935
National Gallery of Art, 1998
National Gallery of Art, 1936
National Gallery of Art, 1740
National Gallery of Art, 1468
![Constantine the Great [obverse]](https://api.nga.gov/iiif/f72f7ebe-036b-4935-892d-7e48091ce541/full/843,/0/default.jpg)