1944
National Gallery of Art, 1939
National Gallery of Art, 1966
National Gallery of Art, 1849
National Gallery of Art, 1955
National Gallery of Art, 1629
National Gallery of Art, 1595
National Gallery of Art, 1656
National Gallery of Art, 1945
National Gallery of Art, 1750
National Gallery of Art, 1882
National Gallery of Art, 1963
![Two Maps I [misc. proof]](https://api.nga.gov/iiif/20418331-3546-4548-afdf-7f9b67f196f6/full/843,/0/default.jpg)
![Untitled [abstract study]](https://api.nga.gov/iiif/6c7ed646-ac19-4666-ba6d-6480822dab3d/full/843,/0/default.jpg)
