| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| KBA 9217.36 | Karl Barth an Georg Merz | 28th Dec 1917 | Item: 1 letter | digitized | |
| KBA 9319.284 | Georg Merz an Karl Barth | 30th Dec 1919 | Item: 1 letter | digitized | |
| KBA 9320.38 | Georg Merz an Karl Barth | 6th Feb 1920 | Item: 1 letter | digitized | |
| KBA 9320.55 | Georg Merz an Karl Barth | 22nd Feb 1920 | Item: 1 letter | digitized | |
| KBA 9320.71 | Georg Merz an Karl Barth | 6th Mar 1920 | Item: 1 letter | digitized | |
| KBA 9320.76 | Georg Merz an Karl Barth | 10th Mar 1920 | Item: 1 letter | digitized | |
| KBA 9320.91 | Georg Merz an Karl Barth | 26th Mar 1920 | Item: 1 letter | digitized | |
| KBA 9320.106 | Georg Merz an Karl Barth | 9th Apr 1920 | Item: 1 letter | digitized | |
| KBA 9320.113 | Georg Merz an Karl Barth | 12th Apr 1920 | Item: 1 letter | digitized | |
| KBA 9320.130 | Georg Merz an Karl Barth | 29th Apr 1920 | Item: 1 letter | digitized | |
| KBA 9320.172 | Georg Merz an Karl Barth | 11th Jun 1920 | Item: 1 letter | digitized | |
| KBA 9320.201 | Georg Merz an Karl Barth | 11th Jul 1920 | Item: 1 letter | digitized | |
| KBA 9320.214 | Georg Merz an Karl Barth | 21st Jul 1920 | Item: 1 letter | digitized | |
| KBA 9320.234 | Georg Merz an Karl Barth | 9th Aug 1920 | Item: 1 letter | digitized | |
| KBA 9320.239 | Georg Merz an Karl Barth | 15th Aug 1920 | Item: 1 letter | digitized | |
| KBA 9320.248 | Georg Merz an Karl Barth | 21st Aug 1920 | Item: 1 letter | digitized | |
| KBA 9320.262 | Georg Merz an Karl Barth | 19th Sep 1920 | Item: 1 letter | digitized | |
| KBA 9320.273 | Georg Merz an Karl Barth | 4th Oct 1920 | Item: 1 letter | digitized | |
| KBA 9320.284 | Georg Merz an Karl Barth | 19th Oct 1920 | Item: 1 letter | digitized | |
| KBA 9320.290 | Georg Merz an Karl Barth | 28th Oct 1920 | Item: 1 letter | digitized | |
| KBA 9320.316 | Georg Merz an Karl Barth | 22nd Nov 1920 | Item: 1 letter | digitized | |
| KBA 9320.319 | Georg Merz an Karl Barth | 25th Nov 1920 | Item: 1 letter | digitized | |
| KBA 9320.331 | Georg Merz an Karl Barth | 10th Dec 1920 | Item: 1 letter | digitized | |
| KBA 9320.330 | Georg Merz an Karl Barth | 10th Dec 1920 | Item: 1 letter | digitized | |
| KBA 9320.342 | Georg Merz an Karl Barth | 21st Dec 1920 | Item: 1 letter | digitized | |
| KBA 9320.356 | Georg Merz an Karl Barth (mit Nachschrift Wolf Meyer-Erlach an KB) | 29th Dec 1920 | Item: 1 letter | digitized | |
| KBA 9321.3 | Georg Merz an Karl Barth | 5th Jan 1921 | Item: 1 letter | digitized | |
| KBA 9321.12 | Georg Merz an Karl Barth | 20th Jan 1921 | Item: 1 letter | digitized | |
| KBA 9321.13 | Georg Merz an Karl Barth | 22nd Jan 1921 | Item: 1 letter | digitized | |
| KBA 9321.21 | Georg Merz an Karl Barth | 28th Jan 1921 | Item: 1 letter | digitized | |
| KBA 9321.26 | Georg Merz an Karl Barth | 2nd Feb 1921 | Item: 1 letter | digitized | |
| KBA 9321.40 | Georg Merz an Karl Barth | 20th Feb 1921 | Item: 1 letter | digitized | |
| KBA 9321.41 | Georg Merz an Karl Barth | 20th Feb 1921 | Item: 1 letter | digitized | |
| KBA 9321.72 | Georg Merz an Karl Barth | 19th Mar 1921 | Item: 1 letter | digitized | |
| KBA 9321.90 | Georg Merz an Karl Barth | 19th Apr 1921 | Item: 1 letter | digitized | |
| KBA 9321.0.3 | Georg Merz an Karl Barth | 25th Apr 1921 | Item: 1 letter | ||
| KBA 9321.102 | Georg Merz an Karl Barth | 5th May 1921 | Item: 1 letter | digitized | |
| KBA 9321.131 | Georg Merz an Karl Barth | 5th Jun 1921 | Item: 1 letter | digitized | |
| KBA 9321.177 | Georg Merz an Karl Barth | 14th Jul 1921 | Item: 1 letter | digitized | |
| KBA 9321.234 | Georg Merz an Karl Barth | 12th Sep 1921 | Item: 1 letter | digitized | |
| KBA 9321.233 | Georg Merz an Karl Barth | 12th Sep 1921 | Item: 1 letter | digitized | |
| KBA 9321.243 | Georg Merz an Karl Barth | 22nd Sep 1921 | Item: 1 letter | digitized | |
| KBA 9321.260 | Georg Merz an Karl Barth | 6th Oct 1921 | Item: 1 letter | digitized | |
| KBA 9321.273 | Georg Merz an Karl Barth | 21st Oct 1921 | Item: 1 letter | digitized | |
| KBA 9321.275 | Georg Merz an Karl Barth | 23rd Oct 1921 | Item: 1 letter | digitized | |
| KBA 9321.289 | Georg Merz an Karl Barth | 9th Nov 1921 | Item: 1 letter | digitized | |
| KBA 9321.292 | Georg Merz an Karl Barth | 10th Nov 1921 | Item: 1 letter | digitized | |
| KBA 9321.291 | Georg Merz an Karl Barth | 10th Nov 1921 | Item: 1 letter | digitized | |
| KBA 9321.300 | Georg Merz an Karl Barth | 23rd Nov 1921 | Item: 1 letter | digitized | |
| KBA 9321.304 | Georg Merz an Karl Barth | 28th Nov 1921 | Item: 1 letter | digitized |