1943
National Gallery of Art, 1899
National Gallery of Art, 1976
National Gallery of Art, 1931
National Gallery of Art, 2009
National Gallery of Art, 1935
National Gallery of Art, 1771
National Gallery of Art, 1980
National Gallery of Art, 1820
National Gallery of Art, 1995
National Gallery of Art, 1969
National Gallery of Art, 1884
National Gallery of Art, 1991
![Flagstones (a) [trial proof 2]](https://api.nga.gov/iiif/76074520-bf5e-4032-bec1-580b18de84a4/full/843,/0/default.jpg)
![Studies of a Sickbed and Decorations for the Façade of Buckingham Palace [recto and verso]](https://api.nga.gov/iiif/2e083237-91f0-4769-a992-411a4aad1ffb/full/843,/0/default.jpg)
![Zwei Akrobaten (Two Acrobats) [p. 23]](https://api.nga.gov/iiif/72bfe512-272b-406b-9acd-14dca6e8203c/full/843,/0/default.jpg)
![Color & Black, 40 x 40, No. 4 [working proof 1A]](https://api.nga.gov/iiif/22950827-7498-4791-9427-280b04a66c95/full/843,/0/default.jpg)