1855–1865
National Gallery of Art, 1728
National Gallery of Art, 1935
National Gallery of Art, 2002
National Gallery of Art, 1934
National Gallery of Art, 1884
National Gallery of Art, 1970
National Gallery of Art, 1992
National Gallery of Art, 1991
National Gallery of Art, 1800
National Gallery of Art, 1914
National Gallery of Art, 1846
Kelbaugh, Ross J., 1880
![Hippocrates and Dr. John Freind [reverse]](https://api.nga.gov/iiif/9ded7ef5-62b1-44fc-ba1d-629b2c83a549/full/843,/0/default.jpg)
![Figure Studies; Studies of Soldiers [verso]](https://api.nga.gov/iiif/c51738ed-55d4-41ec-b108-172db174ca1a/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/dd4511ed-b557-4095-9369-b03c03e97033/full/843,/0/default.jpg)
