BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 11.02.1886
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 30.10.1886
BRIEF OHNE UMSCHLAG Bose, Carl August Graf Author: Bose, Carl August Graf Recipient: Haeckel, Ernst Dating: 30.12.1886