1963
National Gallery of Art, 1617
National Gallery of Art, 1884
National Gallery of Art, 1808
Rosenwald, Lessing Julius, 1667
National Gallery of Art, 1935
National Gallery of Art, 1929
National Gallery of Art, 1890
National Gallery of Art, 1938
Rosenwald, Lessing Julius, 1851
Rosenwald, Lessing Julius, 1858
Rosenwald, Lessing Julius, 1956
![Schlafender Mandrill (Sleeping Mandrill) [p. 24]](https://api.nga.gov/iiif/bcfae61f-e852-4d02-a813-f5670ee1e0df/full/843,/0/default.jpg)
