1924
National Gallery of Art, 1984
National Gallery of Art, 1939
National Gallery of Art, 1515
National Gallery of Art, 1707
National Gallery of Art, 1894
National Gallery of Art, 1480
National Gallery of Art, 1969
National Gallery of Art, 1884
National Gallery of Art, 1946
National Gallery of Art, 1700
![Figure 5 [working proof]](https://api.nga.gov/iiif/1ede6c20-d024-455e-bf7d-5f8dee1e9634/full/843,/0/default.jpg)
![Sitzender Affe (Sitting Monkey) [p. 35]](https://api.nga.gov/iiif/e4636645-10da-40c5-a8dd-7114747e700b/full/843,/0/default.jpg)
