Roberto Matta, Chilean, 1911 to 2002, two color etching from the series titled Les Oh! Tomobiles, 1972. Signed, matted and framed. Roberto Sebastian Antonio Matta Echaurren was one of the best-known painters and a seminal figure in 20th century abstract expressionist and surrealist art. In Les Oh! Tomobiles Matta creates a dream-like setting that is eerily familiar yet fantastic. Strange, human-like figures ride blindly across a chaotic setting expressing Mattas fixation on the idea that technological advances may eventually dehumanize us. Surrealist Etching Prints And Chilean Art Collectibles.