1993
National Gallery of Art, 1940
National Gallery of Art, 2007
National Gallery of Art, 1996
National Gallery of Art, 1781
National Gallery of Art, 1775
National Gallery of Art, 1904
National Gallery of Art, 1884
National Gallery of Art, 1740
National Gallery of Art, 1563
National Gallery of Art, 1948
National Gallery of Art, 1975
National Gallery of Art, 1974
![Irregular Caesuras [working proof 11]](https://api.nga.gov/iiif/f52369d4-9b8b-4fe0-a5d8-e11b10ea5efc/full/843,/0/default.jpg)
![Notizen und zwei Kreisformen (Notations with Two Circles) [p. 2]](https://api.nga.gov/iiif/4eadb77e-8dc6-4153-abb7-5a01967df1ac/full/843,/0/default.jpg)
