1884–1950
National Gallery of Art, 1570
National Gallery of Art, 1920
National Gallery of Art, 1935
National Gallery of Art, 1938
National Gallery of Art, 1923
National Gallery of Art, 1759
National Gallery of Art, 1936
National Gallery of Art, 1600
National Gallery of Art, 1941
National Gallery of Art, 1968
![Schlafender Mandrill (Sleeping Mandrill) [p. 24]](https://api.nga.gov/iiif/bcfae61f-e852-4d02-a813-f5670ee1e0df/full/843,/0/default.jpg)
