Auteur / Collaborateur : Althoff, Friedrich
- Baden-Baden [Poststempel], 1885
- Oberhof, 10/09/1885 [10. Sept. [18]85]
- Berlin, 20/12/1901 [20. Dezember 1901]
- o.O., [o.D.]
- Berlin, 20/09/1889 [20. September 1889]
- Berlin, 06/07/1893 [6. Juli 1893]
- Berlin, Behrenstr. 69, 11/12/1901 [11. Dez. 1901]
- Berlin, 11/11/1886 [11.Nov. 1886]
- Berlin, 31/12/1888 [31. Dezbr. 1888]
- B[erlin], 14/08/1884 [14.8.[18]84]
- B[erlin], 17/07/1884 [17.7.[18]84]
- B[erlin], 08/12/1887 [8.12.[18]87]
- B[erlin], 10/04/1884 [10.4.[18]84]
- B[erlin], 21/06/1889 [21.6.[18]89]
- B[erlin], 13/07/1887 [13.7.[18]87]
- o.O., [o.D.]
- o.O., 1882 [o.D. [1882]]
- o.O., [o.D.]
- o.O., 1893 [o.D. [1893]]
- Berlin, 04/01/1889 [4. Januar 1889]