2 pages, 4to, 277 x 206 mm. (11 x 8½ in.), written on rectos only of two sheets, two tiny holes at fold intersections, otherwise fine." /> EINSTEIN, ALBERT. Autograph letter signed ("Papa") to Hans Albert Einstein, n.p., 17 May [1935]. <I>2 pages, 4to, 277 x 206 mm. (11 x 8½ in.), written on rectos only of two sheets, two tiny holes at fold intersections</I>, otherwise fine. | Christie's