1955
National Gallery of Art, 1750
National Gallery of Art, 1972
National Gallery of Art, 1967
National Gallery of Art, 1919
National Gallery of Art, 1957
National Gallery of Art, 1937
National Gallery of Art, 1935
National Gallery of Art, 1907
National Gallery of Art, 1475
National Gallery of Art, 1861
National Gallery of Art, 1900
National Gallery of Art, 1948
![Two Flags [trial proof]](https://api.nga.gov/iiif/e01f936f-b797-481d-a6a7-99fbc808b180/full/843,/0/default.jpg)
