Inventory
| Letter Number | Date of Letter (if known) |
| 1 | June 8, 1945 |
| 2 | June 11, 1945 |
| 3 | July 22, 1945 |
| 4 | August 3, 1945 |
| 5 | August 8, 1945 |
| 6 | August 15, 1945 |
| 7 | August 27, 1945 |
| 8 | September 6, 1945 |
| 9 | October 4, 1945 |
| 10 | October 30, 1945 |
| 11 | November 11, 1945 |
| 12 | November 18, 1945 |
| 13 | December 10, 1945 |
| 14 | January 8, 1946 |
| 15 | February 14, 1946 |
| 16 | April 7, 1946 |
| 17 | April 17, 1946 |
| 18 | May 8, 1946 |
| 19 | June 2, 1946 |
| 20 | July 14, 1946 |
| 21 | December 5, 1946 |
| 22 | January 11, 1948 |
| 23 | February 3, 1948 |
| 24 | February 15, 1948 |
| 25 | June 8, 1948 |
| 26 | November 28, 1948 |
| 27 | August 26, 1949 |
| 28 | October 30, 1949 |
| 29 | December 14, 1949 |
| 30 | November 8, 1950 |
| 31 | December 23, 1950 |
| 32 | September 20, 1953 |
| 33 | May 4, 1984 |
| 34 | August 26, 1984 |
| 35 | January 2, 1985 |
| 36 | January 2, 1987 |
| 37 | January 5, 1988 |
| 38 | January 3, 1989 |
| 39 | January 9, 1990 |
| 40 | January 7, 1991 |
| 41 | April 6, 1991 |
| 42 | January 3, 1992 |
| 43 | January 29, 1992 |
| 44 | January 8, 1993 |