French school of the 19th century, workshop of Franz Xaver WINTERHALTER Portrait of the singer Kathinka Heinefetter Black pencil 43,5 x 31 cm Monogrammed and dated lower right FW 1854 Provenance: Sale Augustin Aubert, 1864 Note : Kathinka Heinefetter, a native of Mainz, enjoyed an international career as a soprano in Paris and Brussels in the 1850s.

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