Opposition and Sister Squares are Reconciled by M. Duchamp & V. Halberstadt (L'Opposition et les cases conjuguées sont réconciliées par M. Duchamp & V. Halberstadt)
Opposition and Sister Squares are Reconciled by M. Duchamp & V. Halberstadt (L'Opposition et les cases conjuguées sont réconciliées par M. Duchamp & V. Halberstadt)
1932
Paperbound book with cover and layout design by Duchamp
Philadelphia Museum of Art
Purchased with the Director's Discretionary Fund, 1991
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