| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| KBA 9294.4 | Karl Barth an Anna Barth | 9th Sep 1894 | Item: 1 letter | digitized | |
| KBA 9296.2 | Karl Barth an Anna Barth | 1st Jan 1896 | Item: 1 letter | digitized | |
| KBA 9296.1 | Karl Barth an Fritz und Anna Barth | 1st Jan 1896 | Item: 1 letter | digitized | |
| KBA 9296.4 | Karl Barth an Anna Barth | 29th Nov 1896 | Item: 1 letter | digitized | |
| KBA 9297.1 | Karl Barth an Fritz und Anna Barth | 1st Jan 1897 | Item: 1 letter | digitized | |
| KBA 9297.6 | Karl Barth an Anna Barth | 3rd Nov 1897 | Item: 1 letter | digitized | |
| KBA 9298.2 | Karl Barth an Anna Barth | 27th Jul 1898 | Item: 1 letter | digitized | |
| KBA 9298.3 | Karl Barth an Anna Barth | 16th Oct 1898 | Item: 1 letter | digitized | |
| KBA 9299.3 | Karl Barth an Anna Barth | 1st Jan 1899 | Item: 1 letter | digitized | |
| KBA 9299.4 | Karl Barth an Anna Barth | 1st Jan 1899 | Item: 1 letter | digitized | |
| KBA 9299.5 | Karl Barth an Anna Barth | 1st Jan 1899 | Item: 1 letter | digitized | |
| KBA 9299.6 | Karl Barth an Anna Barth | 1st Jan 1899 | Item: 1 letter | digitized | |
| KBA 9299.7 | Karl Barth an Anna Barth | 1st Jul 1899 | Item: 1 letter | digitized | |
| KBA 9299.19 | Karl Barth an Anna Barth | 28th Jul 1899 | Item: 1 letter | digitized | |
| KBA 9299.8 | Karl Barth an Anna Barth | 28th Jul 1899 | Item: 1 letter | digitized | |
| KBA 9299.22 | Karl Barth an Anna Barth | 27th Oct 1899 | Item: 1 letter | digitized | |
| KBA 9200.5 | Karl Barth an Anna Barth | 4th Mar 1900 | Item: 1 letter | digitized | |
| KBA 9200.6 | Karl Barth an Anna Barth | 3rd Apr 1900 | Item: 1 letter | digitized | |
| KBA 9200.7 | Karl Barth an Anna Barth | 4th Apr 1900 | Item: 1 letter | digitized | |
| KBA 9200.8 | Karl Barth an Anna Barth | 6th Jul 1900 | Item: 1 letter | digitized | |
| KBA 9200.9 | Karl Barth an Anna Barth | 13th Jul 1900 | Item: 1 letter | digitized | |
| KBA 9200.10 | Karl Barth an Anna Barth | 13th Jul 1900 | Item: 1 letter | digitized | |
| KBA 9200.11 | Karl Barth an Anna Barth | 15th Jul 1900 | Item: 1 letter | digitized | |
| KBA 9200.13 | Karl Barth an Anna Barth | 17th Jul 1900 | Item: 1 letter | digitized | |
| KBA 9200.0 | Karl Barth an Anna Barth | 18th Jul 1900 | Item: 1 letter | digitized | |
| KBA 9200.15 | Karl Barth an Anna Barth | 20th Jul 1900 | Item: 1 letter | digitized | |
| KBA 9301.4 | Anna Barth an Karl Barth | 9th Jun 1901 | Item: 1 letter | digitized | |
| KBA 9202.3 | Karl Barth an Anna Barth | 1st Jan 1902 | Item: 1 letter | digitized | |
| KBA 9202.8 | Karl Barth an Anna Barth | 5th Jul 1902 | Item: 1 letter | digitized | |
| KBA 9202.9 | Karl Barth an Anna Barth | 6th Jul 1902 | Item: 1 letter | digitized | |
| KBA 9202.14 | Karl Barth an Fritz und Anna Barth | 14th Sep 1902 | Item: 1 letter | digitized | |
| KBA 9203.11 | Karl Barth an Anna Barth | 29th Sep 1903 | Item: 1 letter | digitized | |
| KBA 9204.6 | Karl Barth an Anna Barth | 21st Jul 1904 | Item: 1 letter | digitized | |
| KBA 9204.8 | Karl Barth an Fritz und Anna Barth | 23rd Jul 1904 | Item: 1 letter | digitized | |
| KBA 9375.41.2 | Anna Barth-Sartorius an Karl Barth | 31st Jul 1904 | Item | digitized | |
| KBA 9205.6 | Karl Barth an Anna Barth | 8th Aug 1905 | Item: 1 letter | digitized | |
| KBA 9205.7 | Karl Barth an Anna Barth | 12th Aug 1905 | Item: 1 letter | digitized | |
| KBA 9205.16 | Karl Barth an Anna Barth | 4th Sep 1905 | Item: 1 letter | digitized | |
| KBA 9205.17 | Karl Barth an Fritz und Anna Barth | 8th Sep 1905 | Item: 1 letter | digitized | |
| KBA 9205.21 | Karl Barth an Anna Barth | 2nd Oct 1905 | Item: 1 letter | digitized | |
| KBA 9205.22 | Karl Barth an Anna Barth | 6th Oct 1905 | Item: 1 letter | digitized | |
| KBA 9206.2 | Karl Barth an Anna Barth | 24th Mar 1906 | Item: 1 letter | digitized | |
| KBA 9206.6 | Karl Barth an Anna Barth | 23rd May 1906 | Item: 1 letter | digitized | |
| KBA 9206.18 | Karl Barth an Fritz und Anna Barth | 24th Oct 1906 | Item: 1 letter | digitized | |
| KBA 9206.23 | Karl Barth an Fritz und Anna Barth | 6th Nov 1906 | Item: 1 letter | digitized | |
| KBA 9206.28 | Karl Barth an Fritz und Anna Barth | 29th Nov 1906 | Item: 1 letter | digitized | |
| KBA 9206.30 | Karl Barth an Fritz und Anna Barth | 6th Dec 1906 | Item: 1 letter | digitized | |
| KBA 9206.34 | Karl Barth an Fritz und Anna Barth | 21st Dec 1906 | Item: 1 letter | digitized | |
| KBA 9206.37 | Karl Barth an Anna Barth | 29th Dec 1906 | Item: 1 letter | digitized | |
| KBA 9207.3 | Karl Barth an Fritz und Anna Barth | 2nd Jan 1907 | Item: 1 letter | digitized |