1572
National Gallery of Art, 1850
National Gallery of Art, 1492
National Gallery of Art, 1884
National Gallery of Art, 1825
National Gallery of Art, 1952
Prouté, S.A., Paul, 1809
National Gallery of Art, 1948
National Gallery of Art, 1918
National Gallery of Art, 1800
National Gallery of Art, 1882
National Gallery of Art, 1937
![begonnene Skizze, wohl zweier Köpfe (Initial Sketch) [p. 15]](https://api.nga.gov/iiif/4cf44ce6-b646-498d-9e46-685543c62259/full/843,/0/default.jpg)
