1972
National Gallery of Art, 1971
National Gallery of Art, 1480
National Gallery of Art, 1935
National Gallery of Art, 1884
National Gallery of Art, 1525
National Gallery of Art, 1599
National Gallery of Art, 1956
National Gallery of Art, 1937
National Gallery of Art, 1507
National Gallery of Art, 1554
National Gallery of Art, 1926
![Entwurf für ein Triptychon (Sketch for a Tryptich) [p. 4]](https://api.nga.gov/iiif/0546b3bb-c670-4d5c-8209-0d0b509ace84/full/843,/0/default.jpg)
![Allegory of War and Peace [reverse]](https://api.nga.gov/iiif/c065f1f1-7654-4361-ae98-14a3224cd482/full/843,/0/default.jpg)
