Alibis: Sigmar Polke 1963-2010 Sigmar Polke, German, 1941–2010 Raster Drawing (Portrait of Lee Harvey Oswald) (Rasterzeichnung (Porträt Lee Harvey Oswald)) 1963 Poster paint and pencil on paper 37 5/16 × 27 1/2″ (94.8 × 69.8 cm) Private Collection Photo: Wolfgang Morell, Bonn © 2014 Estate of Sigmar Polke/ Artists Rights Society (ARS), New York / VG Bild-Kunst, Bonn
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