U.L.A.E. Collection acquired through a challenge grant of Mr. and Mrs. Thomas Dittmer; purchased with funds provided by supporters of the Department of Prints and Drawings; Centennial Endowment; Margaret Fisher Endowment Fund
Concerning Ninth Stone, Bontecou said, “I was really involved with the space idea then. That’s why I got that black, because it was endless. When you look at the heavens, it’s endless. It’s deep, mysterious space.”