BRIEF OHNE UMSCHLAG Benituer, L. von Author: Benituer, L. von Recipient: Haeckel, Ernst Dating: 04.12.1883
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Karl Dating: 18.09.1891
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 03.11.1884
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 01.01.1885
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 17.01.1885
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 04.04.1885
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 03.06.1885
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 16.06.1885