Etching on wove paper of a triangle of 15 balls, with the 1-ball at the apex.
| Source: | MutualArt |
| In Archive: |
No
|
| Place: | United States |
| Publication Date: | 1964 |
| Medium: | JPG only |
| Height/Width: | 4 x 4 |
| Number: | 10/15 |