1918–1919
National Gallery of Art, 1990
National Gallery of Art, 1917
National Gallery of Art, 1840
National Gallery of Art, 1970
National Gallery of Art, 1930
National Gallery of Art, 2005
National Gallery of Art, 1973
National Gallery of Art, 1965
National Gallery of Art, 1634
National Gallery of Art, 1932
National Gallery of Art, 1754
National Gallery of Art, 1931
![Studies for "Gassed" [recto]](https://api.nga.gov/iiif/510f58f3-558e-4835-987f-0a63b48a05b4/full/843,/0/default.jpg)
![Two Seated Women with Male Figure between Them [verso]](https://api.nga.gov/iiif/32f641ca-c839-4cc0-a612-3bbc10dddddb/full/843,/0/default.jpg)
