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Alfred Lichtwark. Rudolf Dührkoop
»Hopfenmarkt-Löwen« after the market work is done. Rudolf Dührkoop
»Lady at the piano«. Rudolf Dührkoop
Lady with hat. Rudolf Dührkoop
Maria Zacharias. Rudolf Dührkoop
Peter Behrens, architect. Rudolf Dührkoop
Portrait of the doctor and amateur photographer Dr. G. Edward Arning, Hamburg. Rudolf Dührkoop
»Portrait of a gentleman with a beard«. Rudolf Dührkoop
Portrait of Wilhelm Busch. Rudolf Dührkoop
Portrait of the poet Richard Dehmel. Rudolf Dührkoop
The very old Elise Averdieck. Rudolf Dührkoop
Wilhelm Busch in the attitude of the quiet connoisseur. Rudolf Dührkoop
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