1935–1939
National Gallery of Art, 1637
National Gallery of Art, 1799
National Gallery of Art, 1969
National Gallery of Art, 1920
National Gallery of Art, 1912
National Gallery of Art, 1939
National Gallery of Art, 1942
National Gallery of Art, 1943
National Gallery of Art, 1883
National Gallery of Art, 1957
National Gallery of Art, 1994
![Landscape with Mountains [recto]](https://api.nga.gov/iiif/0936be8e-4e6d-4176-8ae6-2e49295ec2d7/full/843,/0/default.jpg)
![Studies for a Triumphal Arch Surmounted by Britannia [recto and verso]](https://api.nga.gov/iiif/a66052a7-d6f2-4c0f-9d11-107d2d773fb8/full/843,/0/default.jpg)
