BRIEF [O.A.] Schultze, Leonhard Author: Schultze, Leonhard Recipient: Haeckel, Ernst Dating: 06.01.1904
BRIEF OHNE UMSCHLAG Schultze, Leonhard Author: Schultze, Leonhard Recipient: Haeckel, Ernst Dating: 06.01.1904
BRIEF OHNE UMSCHLAG Bleek, Wilhelm Heinrich Immanuel Author: Bleek, Wilhelm Heinrich Immanuel Recipient: Haeckel, Ernst Dating: 12.03.1867
BRIEF OHNE UMSCHLAG Bleek, Wilhelm Heinrich Immanuel Author: Bleek, Wilhelm Heinrich Immanuel Recipient: Haeckel, Ernst Dating: 18.10.1867
BRIEF OHNE UMSCHLAG Bleek, Wilhelm Heinrich Immanuel Author: Bleek, Wilhelm Heinrich Immanuel Recipient: Haeckel, Ernst Dating: 19.11.1867
BRIEF OHNE UMSCHLAG Bleek, Wilhelm Heinrich Immanuel Author: Bleek, Wilhelm Heinrich Immanuel Recipient: Haeckel, Ernst Dating: 18.12.1867
BRIEF MIT UMSCHLAG Bleek, Wilhelm Author: Bleek, Wilhelm Recipient: Haeckel, Ernst Dating: 18.03.1868
BRIEF OHNE UMSCHLAG Bleek, Wilhelm Heinrich Immanuel Author: Bleek, Wilhelm Heinrich Immanuel Recipient: Haeckel, Ernst Dating: 18.09.1868
BRIEF OHNE UMSCHLAG Bleek, Wilhelm Heinrich Immanuel Author: Bleek, Wilhelm Heinrich Immanuel Recipient: Haeckel, Ernst Dating: 02.10.1868
BRIEF OHNE UMSCHLAG Bleek, Wilhelm Heinrich Immanuel Author: Bleek, Wilhelm Heinrich Immanuel Recipient: Haeckel, Ernst Dating: 04.08.1870