1933
National Gallery of Art, 1884
National Gallery of Art, 1938
National Gallery of Art, 1936
National Gallery of Art, 1572
National Gallery of Art, 1900
National Gallery of Art, 1570
National Gallery of Art, 1901
National Gallery of Art, 1848
National Gallery of Art, 1684
National Gallery of Art, 1963
National Gallery of Art, 1685
National Gallery of Art, 1595
![zwei männliche Profile (Two Male Profiles) [p. 3]](https://api.nga.gov/iiif/8f90f3e6-06f0-4735-8fc5-25acf533058e/full/843,/0/default.jpg)
![Treetops [verso]](https://api.nga.gov/iiif/1faa3651-63ac-4aa9-8889-2442bfea2275/full/843,/0/default.jpg)
![Pinion [working proof]](https://api.nga.gov/iiif/1866f8ff-e169-4e94-927d-6e49a6b9092c/full/843,/0/default.jpg)
