Letter
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| December 13, 1940 | May 26, 1941 | September 2, 1941 |
| December 21, 1941 | January 3, 1942 | January 27, 1942 |
| July 3, 1942 | October 5, 1942 | January 7, 1943 |
| April 30, 1943 | June 26, 1943 | July 14, 1943 |
| July 19, 1943 | November 21, 1943 | March 8, 1944 |
| March 24, 1944 | April 18, 1944 | August 24, 1944 |
| August 29, 1944 | November 26, 1944 | December 7, 1944 |
| December 31, 1944 | February 15, 1945 | March 12, 1945 |
| May 5, 1945 | October 22, 1945 |