1970
Glenstone, 1976
Glenstone, 1975
Glenstone, 1981
Glenstone, 1942
Glenstone, 1973
Glenstone, 1980
Glenstone, 1979
![Casts and Hatching [trial proof 4]](https://api.nga.gov/iiif/7115bf80-2b23-47f1-a92d-58aa1586069c/full/843,/0/default.jpg)
![0-9 [trial proof, figure 7]](https://api.nga.gov/iiif/878d0cfc-549f-4b43-9403-d42b503272f7/full/843,/0/default.jpg)
![Ale Cans [trial proof D]](https://api.nga.gov/iiif/49a99be7-f4fb-45a2-b071-a9218204d905/full/843,/0/default.jpg)
![Cicada [working proof]](https://api.nga.gov/iiif/e06ee69b-60a0-4a35-ab0e-98c1a86ad644/full/843,/0/default.jpg)
![Face [trial proof 4]](https://api.nga.gov/iiif/0d1040d8-39df-4a64-83de-d0410e93347a/full/843,/0/default.jpg)
![Face [trial proof 8]](https://api.nga.gov/iiif/9bea8678-3bd3-4f36-b881-8bb65e31fc3f/full/843,/0/default.jpg)
![Leg (a) [trial proof 4]](https://api.nga.gov/iiif/915df87d-9072-48a6-9eb8-fae3b9d1d4cd/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [C panel, trial proof 1]](https://api.nga.gov/iiif/ca0ff351-9b7b-4832-839e-6aa42a454366/full/843,/0/default.jpg)
![Target with Plaster Casts [trial proof]](https://api.nga.gov/iiif/fcc84f4b-aa60-48dd-aa9b-f96ba0f7545d/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [B panel trial proof 1]](https://api.nga.gov/iiif/96e53c7e-6bbd-4e32-b971-596176ddf6ee/full/843,/0/default.jpg)
![Target with Four Faces [state proof of 4th state]](https://api.nga.gov/iiif/64b008d2-3095-43c9-b228-c68a4ccea8c7/full/843,/0/default.jpg)