1923
National Gallery of Art, 1917
National Gallery of Art, 1956
National Gallery of Art, 1964
National Gallery of Art, 1550
National Gallery of Art, 1935
National Gallery of Art, 1856
National Gallery of Art, 1930
National Gallery of Art, 1892
National Gallery of Art, 1938
National Gallery of Art, 1955
![Unicorn Before a High Rock [reverse]](https://api.nga.gov/iiif/8c53e610-464f-4169-b18f-9fefed8dddb2/full/843,/0/default.jpg)
