1938
National Gallery of Art, 1887
Corcoran Gallery of Art, 1849
National Gallery of Art, 1936
National Gallery of Art, 1992
National Gallery of Art, 1935
National Gallery of Art, 1630
National Gallery of Art, 1622
National Gallery of Art, 1637
National Gallery of Art, 1961
National Gallery of Art, 1799
National Gallery of Art, 1657
![Conserve Wildlife [obverse]](https://api.nga.gov/iiif/2ca1a032-cf7e-4c7d-9b44-6a0f10ffcc4b/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)
