1840
National Gallery of Art, 1936
National Gallery of Art, 1908
National Gallery of Art, 2000
National Gallery of Art, 1650
National Gallery of Art, 1757
National Gallery of Art, 1884
National Gallery of Art, 1939
National Gallery of Art, 1938
National Gallery of Art, 1935
National Gallery of Art, 1951
National Gallery of Art, 1961
![Over the River, Project for the Arkansas River, Colorado [top panel]](https://api.nga.gov/iiif/e9145a59-937c-46b6-873c-ca2205e15fd0/full/843,/0/default.jpg)
![Portrait Sabine Hackenschmidt (Portrait of Sabine Hackenschmidt) [p. 15]](https://api.nga.gov/iiif/a0701682-f7e1-4348-b074-1f4743c3666a/full/843,/0/default.jpg)
