Martzy, Johanna. (1924–1979) Signed Postcard PhotographA rare signed photograph from the Hungarian violinist whom Glenn Gould considered "the most underrated of the great violinists of our age." She is shown in a postcard photograph and has signed and inscribed across the image in blue ballpoint to German Argentinian concert promoter Geraldo Uhlfelder, dating July 20, 1962. Stamped on the verso with her name. Very fine. 3. 75 x 5. 75 inches (9. 5 x 14. 7 cm). Geraldo Uhlfelder was the founder of the