1977
National Gallery of Art, 1852
National Gallery of Art, 1992
National Gallery of Art, 1980
National Gallery of Art, 1549
National Gallery of Art, 2005
National Gallery of Art, 1973
National Gallery of Art, 1827
National Gallery of Art, 1837
National Gallery of Art, 1967
National Gallery of Art, 1955
National Gallery of Art, 1979
National Gallery of Art, 1922
![Unicorn Purifying the Realm [reverse]](https://api.nga.gov/iiif/dc185499-f054-4eb6-9822-0039addcd993/full/843,/0/default.jpg)
![Studio Corner [special proof]](https://api.nga.gov/iiif/c4f40d35-bc66-486c-9a66-da98044d179a/full/843,/0/default.jpg)
