Fritzi Scheff was an opera singer and an actress. She was born in 1879 and made her debut at the Munich Royal Opera in the title role of Martha. She had immense success as Fifi in Mlle. Modiste in 1905-1906 and is still remembered for her rendition of Kiss Me Again from that Operetta. This postcard, sent in 1906, indicates that Fritzi Scheff is coming to Elmira, New York soon. Considering the time frame, she probably would have been performing the role of Fifi. Fritzi Scheff died in 1954.
For a vintage paper doll of Fritzi Scheff, check out this post at the Paper Collector.