Oskar Kokoschka. (Austrian, 1886-1980). Hans Tietze and Erica Tietze-Conrat. 1909. Oil on canvas. 30 1/8 x 53 5/8" (76.5 x 136.2 cm). Abby Aldrich Rockefeller Fund. © 2011 Artists Rights Society (ARS), New York / Pro Litteris, Zurich.
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