1886
National Gallery of Art, 1988
Williams, Dave H. and Reba W., 1930
National Gallery of Art, 1938
National Gallery of Art, 1837
National Gallery of Art, 1447
National Gallery of Art, 1936
National Gallery of Art, 1893
Williams, Dave H. and Reba W., 1900
National Gallery of Art, 1941
National Gallery of Art, 1994
National Gallery of Art, 1937
National Gallery of Art, 1845
![Pi [working proof 2]](https://api.nga.gov/iiif/cd9ef14b-ffc9-4b54-8bff-f34993de222f/full/843,/0/default.jpg)
![Emblem of Authority [reverse]](https://api.nga.gov/iiif/f4460d5e-e23f-4d1c-af03-a99671cfb0b1/full/843,/0/default.jpg)
