1922
National Gallery of Art, 1997
National Gallery of Art, 1938
National Gallery of Art, 1964
National Gallery of Art, 1965
National Gallery of Art, 1951
National Gallery of Art, 1963
National Gallery of Art, 1991
National Gallery of Art, 1884
National Gallery of Art, 1825
National Gallery of Art, 1952
National Gallery of Art, 1940
National Gallery of Art, 1511
![Study VI, New York Harbor [verso, #28, brown]](https://api.nga.gov/iiif/a1a565dc-fc7e-4b54-a712-b20cc573cef6/full/843,/0/default.jpg)
![Untitled [Primaries with Secondaries] [trial proof]](https://api.nga.gov/iiif/1cb32d52-3300-4adc-93e9-2ba71cce44a9/full/843,/0/default.jpg)
![Löwenkopf im Profil (Lion Profile) [p. 7]](https://api.nga.gov/iiif/82f3463e-a461-4227-b5f1-1cb9d04fe0ad/full/843,/0/default.jpg)
![The Madonna with Saint Ulrich and Saint Afra [recto]](https://api.nga.gov/iiif/51163288-a2fb-455e-ba0d-4ed2ef2f34b0/full/843,/0/default.jpg)