1804–1881
National Gallery of Art, 1922
National Gallery of Art, 1923
National Gallery of Art, 1936
National Gallery of Art, 1910
National Gallery of Art, 1903
National Gallery of Art, 1834
National Gallery of Art, 1908
National Gallery of Art, 1939
National Gallery of Art, 1549
National Gallery of Art, 1946
National Gallery of Art, 1928
National Gallery of Art, 1490
![Unicorn Purifying the Realm [reverse]](https://api.nga.gov/iiif/dc185499-f054-4eb6-9822-0039addcd993/full/843,/0/default.jpg)
![An Owl [reverse]](https://api.nga.gov/iiif/5e0eff2b-f67d-46c3-bde6-b02369debad9/full/843,/0/default.jpg)