1879
National Gallery of Art, 1566
National Gallery of Art, 1850
Eadweard Muybridge, 1887
National Gallery of Art, 1967
National Gallery of Art, 1940
National Gallery of Art, 1991
National Gallery of Art, 1936
National Gallery of Art, 1956
National Gallery of Art, 1910
National Gallery of Art, 1500
![Leaves of Grass [verso]](https://api.nga.gov/iiif/4e598447-4b76-4b30-b899-3931509f58d1/full/843,/0/default.jpg)
![Francesco Petrarca [obverse]](https://api.nga.gov/iiif/11b96e3d-ab2d-425c-9828-08b847902a27/full/843,/0/default.jpg)