2 pages on a single sheet, slightly worn, two punch holes to left margin, not affecting text. - Autograph letter signed ("Werner Heisenberg") Göttingen, 9 December 1925. 2 pages on stationery of the "Institut für theoretische Physik der Universität," folded, few marginal tears, one with tape repair, two punch holes to left margin, not affecting text.. -- Autograph letter signed ("W. Heisenberg") Göttingen, 19 February 1926. 2 pages on a single sheet, two punch holes to left margin, affecting two letters. " /> HEISENBERG, Werner. Three autograph letters to Samuel Goudsmit in German (1902-1978) comprising: Autograph letter signed ("Werner Heisenberg") Göttingen 21 November [1925]. <I>2 pages on a single sheet, slightly worn, two punch holes to left margin, not affecting text</I>. - Autograph letter signed ("Werner Heisenberg") Göttingen, 9 December 1925. <I>2 pages on stationery of the "Institut für theoretische Physik der Universität," folded, few marginal tears, one with tape repair, two punch holes to left margin, not affecting text</I>.. -- Autograph letter signed ("W. Heisenberg") Göttingen, 19 February 1926. <I>2 pages on a single sheet, two punch holes to left margin, affecting two letters</I>. | Christie's