3Untitled, from Portfolio of 12 Prints by 4 Artists1975E. Hilgemann1982.226.1/12676281315Untitled, from Portfolio of 12 Prints by 4 Artists1975E. Hilgemann1982.226.2/12677271316Untitled, from Portfolio of 12 Prints by 4 Artists1975E. Hilgemann1982.226.3/12677272317