1273. ALBERT EINSTEIN (1879-1955) American physicist whose Theory of Relativity and studies of mass and energy relationships revolutionized the field of physics. Fine S.P. 10" x 8" b/w, a great image showing Einstein at a podium, looking down while giving a speech. Signed at bottom blank margin: "A. Einstein 53". Very good to fine condition. Along with an A.L.S. by a scientist who worked at G.E. on official letterhead, written in German but signed in Cyrillic, May 22, 1895, with nice scientific content about chemical experiments. $2,000 - 3,000