1622–1699
National Gallery of Art, 1941
National Gallery of Art, 1935
National Gallery of Art, 1696
National Gallery of Art, 1600
National Gallery of Art, 1750
National Gallery of Art, 1936
National Gallery of Art, 1634
National Gallery of Art, 1938
National Gallery of Art, 1635
National Gallery of Art, 1812
National Gallery of Art, 1589
National Gallery of Art, 1884
![Nilpferdkopf mit geöffnetem Maul (Hippo with Open Mouth) [p. 15]](https://api.nga.gov/iiif/e0b4fca7-23c6-4c78-8a45-28d44754b11d/full/843,/0/default.jpg)