1940–2007
National Gallery of Art, 1946
National Gallery of Art, 1918
National Gallery of Art, 1855
National Gallery of Art, 1944
National Gallery of Art, 1937
National Gallery of Art, 1935
National Gallery of Art, 1832
National Gallery of Art, 1941
National Gallery of Art, 1903
National Gallery of Art, 1996
National Gallery of Art, 1891
![Portrait of Wolfgang Frommel [p. 25]](https://api.nga.gov/iiif/2df969e9-ec3c-4874-b105-3b92c342d435/full/843,/0/default.jpg)
![Untitled [trial proof of 2nd state]](https://api.nga.gov/iiif/4ed3b202-0e05-48b3-aaf6-46d01871cf95/full/843,/0/default.jpg)
