BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob; Haeckel, Charlotte Author: Haeckel, Carl Gottlob; Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 22.07.1855
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob; Haeckel, Charlotte Author: Haeckel, Carl Gottlob; Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 10.07.1855
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob; Haeckel, Karl Author: Haeckel, Carl Gottlob; Haeckel, Karl Recipient: Haeckel, Ernst Dating: 22.06.1855