Hann Trier has
been in two exhibitions at MoMA,
between 1963 and 1978.
6 August to 29 September 1963
Pablo Picasso, Henri Matisse, Paul Klee and William S. Lieberman, among others, were involved.
23 September 1977 to 2 January 1978
Pablo Picasso, Jasper Johns, Jim Dine and Riva Castleman, among others, were involved.