1973
Serge Lozingot, 1987
Gemini G.E.L., 1994
Roy Lichtenstein, 2012
Roy Lichtenstein, 1985
Roy Lichtenstein, 1969
Gemini G.E.L., 1969
Serge Lozingot, 1973
Roy Lichtenstein, 1970
Gemini G.E.L., 1973
Gemini G.E.L., 1992
![Knee [trial proof]](https://api.nga.gov/iiif/fdb17cd2-18fd-4429-a4ac-a12debaa49af/full/843,/0/default.jpg)
![Untitled [architecture study]](https://whitneymedia.org/assets/artwork/61878/2019_234_116_cropped.jpg)
![Four Panels from Untitled 1972 [C panel, trial proof 4]](https://api.nga.gov/iiif/0a493a86-89fe-4b7a-aa40-0541f63e3607/full/843,/0/default.jpg)
![Untitled #9 [special proof]](https://api.nga.gov/iiif/eaf88898-5f13-48dc-8855-ad7feff8073d/full/843,/0/default.jpg)
![Figure 2 [color trial proof]](https://api.nga.gov/iiif/51cdc17b-85f8-434c-b54d-8e2c12084489/full/843,/0/default.jpg)
