1981
National Gallery of Art, 1980
National Gallery of Art, 1637
Brown, Kathan, 1991
Patrons' Permanent Fund, 1973
National Gallery of Art, 1935
National Gallery of Art, 1955
National Gallery of Art, 1596
National Gallery of Art, 1475
National Gallery of Art, 1500
National Gallery of Art, 1600
National Gallery of Art, 1922
Brown, Kathan, 2003
![Drypoint Delta [special proof]](https://api.nga.gov/iiif/6467a0f7-a7ae-40fc-98b2-b27ea13e71b0/full/843,/0/default.jpg)
