Overlap. Inscribed
Cambridge,MA: [the artist?]. 1967. Dist. by George Wittenborn. 60 geometric plates, the last six with transparencies that produce optical effects. 89 pp. White boards. About 17 cm square. Inscribed on flyleaf: "Demonstration Sat. for B. Karpel. Albert B. Gregory Jr. [?]." Interesting studies in optical art. Staining at spine and..... More