Admission is always free Directions

Open today: 10:00 to 5:00

Inscription

lower left verso in graphite: R. Mangold Two Triangles within a Square #3 1975

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, 100