German soprano (1855-1905), appeared in leading roles both in many European opera houses as well as the Metropolitan Opera, particularly prominent in the Wagnerian repertoire. Her voice had an unusually wide range which allowed her to sing both soprano, mezzo-soprano and contralto roles. 

Signed half-tone postcard photograph, shown as herself, signed and inscribed in Munich.  Photo by Ernst Kussner, Vienna. Size is 3.5 x 5.5 inches, small crease on bottom right, otherwise in excellent condition. RARE!