Benno's Dadaist work The Amazon was exhibited in the “Exhibition of collages, papiers-collés and photo-montages,” November 4-26, 1938, at Guggenheim Jeune in London. The Peggy Guggenheim Foundation has confirmed the work and is including it in their Catalogue of historical exhibitions. By the early 1930s he had established a reputation as a member of the international avant-garde and exhibited with the most significant European artists including Paul Klee, Max Ernst, Wassily Kandinsky, Salvador Dalí, Joan Miró, Hans Arp, and Fernand Léger. Pablo Picasso sponsored Benno’s first one-man show in Paris in 1934.
