BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Sethe, Christoph Dating: 22.05.1840
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob Author: Haeckel, Carl Gottlob Recipient: Haeckel, Ernst Dating: 27.07.1845
BRIEF OHNE UMSCHLAG Haeckel, Charlotte Author: Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 27.07.1845
BRIEF OHNE UMSCHLAG Haeckel, Charlotte Author: Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 24.02.1842
BRIEF OHNE UMSCHLAG Weiß, Ernst; Osterwald, Wilhelm Author: Weiß, Ernst; Osterwald, Wilhelm Recipient: Haeckel, Ernst Dating: 06.12.1852