| August Sander Book cover for August Sander "Menschen des 20- Jahrhunderts. Portraitphotographien 1892-1952" Text Gunther Sander. Ed. Ulrich Keller (München: Schirmer/Mosel, 1980) 1980 Book cover Stockholms Auktionsverk Photographica, 4 April 2011, Lot: 4423 LL/43535
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