1715–1790
National Gallery of Art, 1960
National Gallery of Art, 1941
National Gallery of Art, 1972
National Gallery of Art, 1867
National Gallery of Art, 1748
National Gallery of Art, 1884
National Gallery of Art, 1964
National Gallery of Art, 1969
National Gallery of Art, 1938
National Gallery of Art, 1955
National Gallery of Art, 1937
National Gallery of Art, 1949
![Nilpferd in Rückenansicht (Hippo from behind) [p. 24]](https://api.nga.gov/iiif/677c4363-3a31-43b6-b350-da3b208da0e2/full/843,/0/default.jpg)
