1956
National Gallery of Art, 1590
National Gallery of Art, 1936
National Gallery of Art, 1480
National Gallery of Art, 1971
National Gallery of Art, 1654
Frank, Robert, 1956
National Gallery of Art, 1923
National Gallery of Art, 1884
National Gallery of Art, 1926
National Gallery of Art, 1647
National Gallery of Art, 1935
National Gallery of Art, 1620
![Four Heads and Two Figures [verso]](https://api.nga.gov/iiif/9a07a987-5f08-43e9-aff7-187586a04f1a/full/843,/0/default.jpg)
