2012
National Gallery of Art, 1658
National Gallery of Art, 1884
National Gallery of Art, 1953
National Gallery of Art, 1940
National Gallery of Art, 1936
National Gallery of Art, 1600
National Gallery of Art, 1728
National Gallery of Art, 2007
National Gallery of Art, 1937
National Gallery of Art, 1460
National Gallery of Art, 1891
National Gallery of Art, 1927
![Cottonwood [working proof 2]](https://api.nga.gov/iiif/b2ffb114-ebeb-47a2-a2e9-1c810e89448b/full/843,/0/default.jpg)
![Unicorn Dipping Its Horn into a Stream [reverse]](https://api.nga.gov/iiif/d17d7076-05e0-4254-81da-be87f9f5c7c0/full/843,/0/default.jpg)
