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| Robert Barry, Douglas Huebler, Joseph Kosuth and Lawrence Weiner, 1969 |
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| Konrad Lueg, Sigmar Polke, Blinky Palermo and Gerhard Richter in front of Galerie Heiner Friedrich Köln, 1967 |
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| Peter Fischli and David Weiss with their 'Large Vase', from around 1986 Credit Jason Klimatsas/Fischli Weiss Archive, Zurich |
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| David Hockney |
