Autograph signature from the fine Amerian pianist who gave the American premiere of the Shostakovich First Piano Concerto (Philadelphia, 1934) and who performed at the Potsdam conferece in 1945 for Truman, Churchill and Stalin. Boldly signed below his photograph on a bio clipped from a program where he was to perform Gershwin's Rhapsody in Blue 8.5 x 5.5 inches.