1936
National Gallery of Art, 1969
National Gallery of Art, 1997
National Gallery of Art, 1776
National Gallery of Art, 1795
National Gallery of Art, 1940
National Gallery of Art, 1603
National Gallery of Art, 1488
National Gallery of Art, 1636
National Gallery of Art, 1935
National Gallery of Art, 1983
National Gallery of Art, 1625
![Study VI, New York Harbor [recto, #15, blue-green and gray]](https://api.nga.gov/iiif/f717166f-4413-42b3-8537-eea0f6e0d34a/full/843,/0/default.jpg)
![Lodovico Maria Sforza, called il Moro, 1452-1508, 7th Duke of Milan 1494-1500 [obverse]](https://api.nga.gov/iiif/d7d1bc1b-d8b9-4b9a-a8e9-7a098a8f6524/full/843,/0/default.jpg)
