Addressees: Lindau, Rudolf
- SLC to Rudolf Lindau, 12 October–November 1891 · Berlin, Germany · UCCL08961
- SLC to Rudolf Lindau, 12 October–22 February 1892 · Berlin, Germany · UCCL08960
- SLC to Rudolf Lindau, 11 December 1891 · Berlin, Germany · UCCL04259
- SLC to Rudolf Lindau, 24 December 1891 · Berlin, Germany · UCCL04264
- SLC to Rudolf Lindau, 30 March 1898 · Vienna, Austria · UCCL05372
- SLC to Rudolf Lindau, 14 May–14 September 1898 · Kaltenleutgeben, Austria · UCCL05480
- SLC to Rudolf Lindau, 24 April 1901 · New York, N.Y · UCCL06042
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