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R.M.Lenox: 1914, Paul Klee, Motion of a Landscape -- Los Angeles County Museum of Art
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R.M.Lenox: 1922, Paul Klee, Senecio (Soon to be Aged) -- Kunstmuseum Basel
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R.M.Lenox: 1923, Paul Klee, Colorful Flower Garden -- Kunsthaus Zurich
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R.M.Lenox: 1924 Paul Klee, Portrait of Frau P. in the South -- Peggy Guggenheim Collection (Venice)
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R.M.Lenox: 1924, Paul Klee, Cathedral -- Phillips Collection (Washington)
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R.M.Lenox: 1925, Paul Klee, Fish Magic -- Philadelphia Museum of Art
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R.M.Lenox: 1925, Paul Klee, May Picture -- Metropolitan Museum of Art (New York)
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R.M.Lenox: 1926, Paul Klee, Magic Garden -- Peggy Guggenheim Collection (Venice)
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R.M.Lenox: 1926, Paul Klee, Village Carnival -- Philadelphia Museum of Art
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R.M.Lenox: 1927, Paul Klee, Prestidigitator (Conjuring Trick) -- Philadelphia Museum of Art
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R.M.Lenox: 1929, Paul Klee, Highway and Byways -- Ludwig Museum (Cologne)
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R.M.Lenox: 1930, Paul Klee, Festive - Serious -- Kreeger Museum (Washington)
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R.M.Lenox: 1932, Paul Klee, Mask of Fear -- Museum of Modern Art (New York)
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R.M.Lenox: 1932, Paul Klee, Polyphony -- Kunstmuseum Basel
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R.M.Lenox: 1932, Paul Klee, Two Heads -- Norton Simon Museum (Pasadena)
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R.M.Lenox: 1932, Paul Klee, Two Red Flowers (Zwei rote Bluten) [watercolor] -- Barnes Foundation (Philadelphia)
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R.M.Lenox: 1932, Paul Klee, Untitled -- Stadel Museum (Frankfurt)
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R.M.Lenox: 1934, Paul Klee, Figure of the Oriental Theater -- Phillips Collection (Washington)
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R.M.Lenox: 1935, Paul Klee, But the Red Roof -- Philadelphia Museum of Art
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R.M.Lenox: 1937, Paul Klee, Efflorescence -- Phillips Collection (Washington)
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R.M.Lenox: 1937, Paul Klee, Port and Sailboats -- Pompidou Center (Paris)
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R.M.Lenox: 1937, Paul Klee, The Way to the Citadel -- Phillips Collection (Washington)
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R.M.Lenox: 1937, Paul Klee, Traveling Circus -- Baltimore Museum of Art
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R.M.Lenox: 1939, Paul Klee, Hot Pursuit -- Fogg Art Museum (Cambridge)