Robert Grosvenor has
been in two exhibitions at MoMA,
between 1970 and 1974.
23 May to 31 August 1970
Pablo Picasso, Henri Matisse, Fernand Léger and Ernst Ludwig Kirchner, among others, were involved.
25 February to 24 May 1974
Richard Tuttle, Michael Heizer, John Cage and Alan Saret, among others, were involved.