1905–1915
National Gallery of Art, 1500
National Gallery of Art, 1537
National Gallery of Art, 1989
National Gallery of Art, 1937
National Gallery of Art, 2019
National Gallery of Art, 1587
National Gallery of Art, 1935
National Gallery of Art, 1705
National Gallery of Art, 1887
National Gallery of Art, 1973
National Gallery of Art, 1966
National Gallery of Art, 2001
![Winter [working proof]](https://api.nga.gov/iiif/6ea5feb6-5675-479b-9880-4811a511c420/full/843,/0/default.jpg)
![Canyon Clouds [working proof 3]](https://api.nga.gov/iiif/25f3fdca-0187-4142-a799-b61e3a5dd50a/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/8a23d83f-3c85-43f3-8bef-f62db9833743/full/843,/0/default.jpg)