1800
National Gallery of Art, 1943
National Gallery of Art, 1936
National Gallery of Art, 1938
National Gallery of Art, 1811
National Gallery of Art, 1948
National Gallery of Art, 1621
National Gallery of Art, 1961
National Gallery of Art, 1478
National Gallery of Art, 1993
National Gallery of Art, 1941
O'Brien, John, Mr., 1598
![Sheet of Studies [recto and verso]](https://api.nga.gov/iiif/359e5f4f-6597-4d56-8bc7-8cb969e734cf/full/843,/0/default.jpg)
![Ox [reverse]](https://api.nga.gov/iiif/99fa289e-a6fd-453f-8c8e-641153e43536/full/843,/0/default.jpg)
