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Open today: 11:00 to 6:00

Inscription

across bottom verso in graphite and white pencil: R. Mangold 1975 A Triangle and a Square within a Square

Provenance

Dorothy and Herbert Vogel, New York, NY; purchase/gift to NGA, 1991.

Exhibition History
1987
Beyond the Picture: Works by Robert Barry, Sol LeWitt, Robert Mangold, Richard Tuttle from the Collection of Dorothy & Herbert Vogel, Kunsthalle Bielefeld, Germany, 3 May-5 June 1987
Bibliography
1987
Beyond the Picture: Works by Robert Barry, Sol LeWitt, Robert Mangold, Richard Tuttle from the Collection of Dorothy & Herbert Vogel, Kunsthalle Bielefeld, Germany, 1987, 98