1893
National Gallery of Art, 1890
National Gallery of Art, 1747
National Gallery of Art, 1504
National Gallery of Art, 1964
National Gallery of Art, 1895
National Gallery of Art, 1936
National Gallery of Art, 1884
National Gallery of Art, 1795
National Gallery of Art, 1861
Patrons' Permanent Fund, 1962
National Gallery of Art, 1914
National Gallery of Art, 1628
![Schlafender Mandrill (Sleeping Mandrill) [p. 24]](https://api.nga.gov/iiif/bcfae61f-e852-4d02-a813-f5670ee1e0df/full/843,/0/default.jpg)
