Signed postcard photograph of the great prodigy violinist who toured with Bartok and who was later the dedicatee of the Sibelius Violin Concerto. Vecsey has signed across his image and dated Buenos Aires, 1913. On the verso, the postcard is addressed to the Argentinian collector Ramona Imaz Otaño, with the original stamp and postmark. Light wear to the edges; overall in fine condition. 3.5 x 5.5 inches (8.5 x 13.5 cm).