1903–1970
National Gallery of Art, 1999
National Gallery of Art, 2011
National Gallery of Art, 1939
National Gallery of Art, 2019
National Gallery of Art, 1470
National Gallery of Art, 1937
National Gallery of Art, 1884
National Gallery of Art, 1800
National Gallery of Art, 2008
National Gallery of Art, 1993
National Gallery of Art, 1956
National Gallery of Art, 1902
![Cow Print [working proof 1]](https://api.nga.gov/iiif/73cd0ef5-87ff-4fc1-a205-ed5aad91cbb6/full/843,/0/default.jpg)
![Löwenkopf im Profil (Double Lion Profile) [p. 8]](https://api.nga.gov/iiif/e8eeb27a-28b5-46c2-b253-9f0e026b62f4/full/843,/0/default.jpg)
![Letter to the Mother [right]](https://api.nga.gov/iiif/58c1a613-3c74-46c7-bfdf-949fb99ff1a2/full/843,/0/default.jpg)
