1998
National Gallery of Art, 1977
National Gallery of Art, 1984
National Gallery of Art, 1618
National Gallery of Art, 1956
National Gallery of Art, 1938
National Gallery of Art, 1970
National Gallery of Art, 1870
National Gallery of Art, 1761
National Gallery of Art, 1794
National Gallery of Art, 2005
National Gallery of Art, 1891
National Gallery of Art, 1935
![Light Bulb [trial proof B]](https://api.nga.gov/iiif/edafcfc5-67d5-457d-bf83-544405c6a23a/full/843,/0/default.jpg)
![Highlands from Newburgh [verso]](https://api.nga.gov/iiif/e16fec88-40ee-4bfb-a423-095f092101c7/full/843,/0/default.jpg)
