Brief an Collega [Paul Krüger]
Siena, 13.08.1884 [13 Agosto 1884]Brief an College [Paul Krüger]
Wien, 06.01.1911 [6 Jan [19]11]Brief an College [Paul Krüger]
München, 25.10.1879 [25. October [18]79]Brief an College [Paul Krüger]
Charlottenburg (Berlin), 26.09.1876 [26/9 [18]76]Brief an Collegen [Paul Krüger]
Charlottenburg (Berlin), 22.10.1898 [22/10 [18]98 [Poststempel]]Brief an Collegen [Paul Krüger]
Charlottenburg (Berlin), 06.02.1903 [6/2 1903]Brief an Collegen [Paul Krüger]
Charlottenburg (Berlin), 09.02.1903 [9/2 1903]Brief an Collegen [Paul Krüger]
Charlottenburg (Berlin), 12.02.1903 [12/2 1903]Brief an collègue [Paul Krüger]
Paris, 04.01.1891 [4.1. [18]91]Brief an collègue [Paul Krüger]
Paris, 20.12.1898 [20.12. [18]98]Brief an collègue [Paul Krüger]
[o.O.], 31.12.1898 [Samedi 31.12. [18]98]Brief an collègue [Paul Krüger]
Paris, 12.06.1899 [12.6. [18]99]Brief an collègue [Paul Krüger]
Paris, 05.11.1899 [5.11. [18]99]Brief an collègue [Paul Krüger]
Paris, 16.12.1898 [16.12. [18]98]Brief an collègue [Paul Krüger]
Paris, 11.05.1899 [11.5. [18]99]Brief an collègue [Paul Krüger]
Paris, 15.05.1910 [15.5. [19]10]Brief an Doctor [Paul Krüger]
Berlin, 20.09.1869 [20 Sept. 1869]Brief an Doctor [Paul Krüger]
Berlin, 06.09.1869 [6 Sept. 1869]Brief an Doctor [Paul Krüger]
Charlottenburg (Berlin), 04.09.1869 [4/9 [18]69]Brief an Doctor [Paul Krüger]
Berlin, 18.05.1868 [18 Mai 1868]