1937
National Gallery of Art, 1993
National Gallery of Art, 1891
National Gallery of Art, 1976
National Gallery of Art, 1935
United States Government, 1935
National Gallery of Art, 1578
National Gallery of Art, 1981
National Gallery of Art, 1909
National Gallery of Art, 1596
National Gallery of Art, 1936
National Gallery of Art, 1995
National Gallery of Art, 1908
![Light Bulb [working proof]](https://api.nga.gov/iiif/b677c783-899b-4518-adce-4877b24b09b2/full/843,/0/default.jpg)
![Long Horizon II [center]](https://api.nga.gov/iiif/dea3d3ef-a781-4885-b8dc-611a1db741b4/full/843,/0/default.jpg)
