BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Unbekannt (Mutter?) Dating: 14.04.1878
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Familie Haeckel in Jena und Potsdam Dating: 20.04.1878
BRIEF OHNE UMSCHLAG Marojevic, Bonagracija Author: Marojevic, Bonagracija Recipient: Haeckel, Ernst Dating: 07.07.1871
BRIEF OHNE UMSCHLAG Marojevic, Bonagracija Author: Marojevic, Bonagracija Recipient: Haeckel, Ernst Dating: 18.11.1871
BRIEF OHNE UMSCHLAG Marojevic, Bonagracija Author: Marojevic, Bonagracija Recipient: Haeckel, Ernst Dating: 26.07.1872
BRIEF OHNE UMSCHLAG Marojevic, Bonagracija Author: Marojevic, Bonagracija Recipient: Haeckel, Ernst Dating: 03.11.1874
BRIEF OHNE UMSCHLAG Marojevic, Bonagracija Author: Marojevic, Bonagracija Recipient: Haeckel, Ernst Dating: 19.01.1881
BRIEF OHNE UMSCHLAG Stahlberger, Karl Author: Stahlberger, Karl Recipient: Haeckel, Ernst Dating: 16.03.1900
BRIEF OHNE UMSCHLAG Faber, George Louis Author: Faber, George Louis Recipient: Haeckel, Ernst Corporation: British Consulate Dating: 09.06.1883
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Siebold, Carl Theodor Ernst von Dating: 20.04.1878