1½ pages, 4to, on Einstein's personal stationery, separate envelope. [With:] Two carbon copies of typed letters of Gordon to Einstein, 1 December 1943 and 25 March 1944. 4 pages, 4to." /> EINSTEIN, Albert. Typed letter signed ("A. Einstein.") with 10-word autograph addition, to Moses Gordon, Princeton, N.J., 13 January 1944. <I> 1½ pages, 4to, on Einstein's personal stationery, separate envelope.</I> [With:] Two carbon copies of typed letters of Gordon to Einstein, 1 December 1943 and 25 March 1944. <I>4 pages, 4to.</I> | Christie's