1990–1999
National Gallery of Art, 1939
National Gallery of Art, 1936
National Gallery of Art, 1930
National Gallery of Art, 1859
National Gallery of Art, 1846
National Gallery of Art, 1935
National Gallery of Art, 1969
National Gallery of Art, 1878
National Gallery of Art, 1938
National Gallery of Art, 1898
Patrons' Permanent Fund, 1966
![Two Maps I [trial proof]](https://api.nga.gov/iiif/425534b5-f85e-42e8-8184-aa4305d7bc6c/full/843,/0/default.jpg)