1968
Lee and Maria Friedlander, 1970
Patrons' Permanent Fund, 1976
Lee and Maria Friedlander, 1964
Lee Friedlander, 1972
Lee Friedlander, 1969
Patrons' Permanent Fund, 2000
Patrons' Permanent Fund, 1994
Lee and Maria Friedlander, 1997
Patrons' Permanent Fund, 1969
Lee Friedlander, 1965
Lee Friedlander, 1974
Lee and Maria Friedlander, 1980
![0 through 9 [trial proof]](https://api.nga.gov/iiif/501bfcf1-7e20-441a-8af2-4802972e106d/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/934cdbc8-4170-4135-9530-87a60d8645c9/full/843,/0/default.jpg)
![Untitled (American Center) [trial proof]](https://api.nga.gov/iiif/e5633525-204f-4a0a-a780-71d638733c25/full/843,/0/default.jpg)
![Figure 6 [working proof]](https://api.nga.gov/iiif/379aed58-8467-4ec5-b77a-6bca2ca431bc/full/843,/0/default.jpg)
