BRIEF OHNE UMSCHLAG Finsterbusch, Anna Author: Finsterbusch, Anna Recipient: Haeckel, Ernst Dating: 29.03.1918
POSTKARTE Finsterbusch, Ludwig Author: Finsterbusch, Ludwig Recipient: Haeckel, Ernst Dating: 19.02.1914
POSTKARTE Finsterbusch, Ludwig Author: Finsterbusch, Ludwig Recipient: Haeckel, Ernst Dating: 02.01.1904
BRIEF OHNE UMSCHLAG Finsterbusch, Helene Author: Finsterbusch, Helene Recipient: Haeckel, Ernst Dating: 25.12.1904
POSTKARTE Finsterbusch, Ludwig Author: Finsterbusch, Ludwig Recipient: Haeckel, Ernst Dating: 30.12.1904
BRIEF OHNE UMSCHLAG Finsterbusch, Ludwig Author: Finsterbusch, Ludwig Recipient: Haeckel, Ernst Dating: 03.03.1906
BRIEF OHNE UMSCHLAG Finsterbusch, Ludwig Author: Finsterbusch, Ludwig Recipient: Haeckel, Ernst Dating: 15.02.1907
POSTKARTE Finsterbusch, Helene Author: Finsterbusch, Helene Recipient: Haeckel, Ernst Dating: 16.02.1907
POSTKARTE Finsterbusch, Ludwig Author: Finsterbusch, Ludwig Recipient: Haeckel, Ernst Dating: 06.03.1907