JeanDubuffet, the French artist and founder of "Art Brut," discovered the work of Mr. Wölfli in 1945 and called him "le grand Wölfli." The Surrealist André Breton considered Wölfli's oeuvre "one of the three of four most important works of the twentieth century," and the Swiss curator Harald Szeemann showed a number of his pieces in 1972 at "documenta
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