1916–1918
National Gallery of Art, 1929
National Gallery of Art, 1593
National Gallery of Art, 1951
National Gallery of Art, 1909
National Gallery of Art, 1490
National Gallery of Art, 1937
National Gallery of Art, 1942
National Gallery of Art, 1941
National Gallery of Art, 1864
National Gallery of Art, 1884
National Gallery of Art, 1601
National Gallery of Art, 1955
![Centennial of the Birth of Charles Darwin, 1809-1882 [obverse]](https://api.nga.gov/iiif/71fc3a36-cbe5-45df-849d-883c56794f65/full/843,/0/default.jpg)
![älterer Mann in Rückenansicht (Elderly Man Seen from Behind) [p. 3]](https://api.nga.gov/iiif/8ead73d1-1570-4c4b-98bd-0e53910c9bab/full/843,/0/default.jpg)
![Untitled [nude on a draped stool with her right foot on the seat]](https://api.nga.gov/iiif/7e9670ea-4549-4756-a144-a59cdf98956b/full/843,/0/default.jpg)