1880–1883
National Gallery of Art, 1925
National Gallery of Art, 1580
National Gallery of Art, 1987
National Gallery of Art, 1755
National Gallery of Art, 1479
National Gallery of Art, 1972
National Gallery of Art, 1951
National Gallery of Art, 1995
National Gallery of Art, 1513
National Gallery of Art, 1940
National Gallery of Art, 1982
National Gallery of Art, 1909
![Sheet of Studies [recto and verso]](https://api.nga.gov/iiif/b671aa80-e9a2-4e3e-976e-de933ffaa32e/full/843,/0/default.jpg)
![Zone [trial proof 2]](https://api.nga.gov/iiif/b55fc1e7-9393-464d-882d-5849802c27d8/full/843,/0/default.jpg)
![Cherub, Swan, and Eagle [reverse]](https://api.nga.gov/iiif/6481b06e-0d46-4f5e-ae2e-41033c80be67/full/843,/0/default.jpg)
