1964
National Gallery of Art, 1883
National Gallery of Art, 1973
National Gallery of Art, 1940
National Gallery of Art, 1300
National Gallery of Art, 1977
National Gallery of Art, 1948
National Gallery of Art, 1927
National Gallery of Art, 1831
Corcoran Gallery of Art, 1860
National Gallery of Art, 1515
National Gallery of Art, 1925
National Gallery of Art, 2011
![Light of Knowledge [reverse]](https://api.nga.gov/iiif/ebc6b978-88ae-42e7-a30b-6e3c51490fb3/full/843,/0/default.jpg)
![#8 from Nine Drypoints and Etchings [artist's proof]](https://api.nga.gov/iiif/76a5763d-abf9-47a0-a302-da781cf9bf99/full/843,/0/default.jpg)
![Three Houses on Pennsylvania Avenue [working proof 2]](https://api.nga.gov/iiif/8ad5fc07-fa5d-47af-bc4e-c97882c9a24e/full/843,/0/default.jpg)