BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Karl Dating: 14.10.1890
DOKUMENT Man, Johannes Govertus de Author: Man, Johannes Govertus de Recipient: Haeckel, Ernst Corporation: Naturhistorisches Museum Leiden Dating: 18.09.1879
BRIEF OHNE UMSCHLAG Man, Johannes Govertus de Author: Man, Johannes Govertus de Recipient: Haeckel, Ernst Corporation: Naturhistorisches Museum Leiden Dating: 19.07.1869
BRIEF OHNE UMSCHLAG Groenou, W... Broese v. Author: Groenou, W... Broese v. Recipient: Haeckel, Ernst Dating: 27.01.1915
BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 25.12.1888
BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 03.10.1890
BRIEF OHNE UMSCHLAG Engelmann, Emma Author: Engelmann, Emma Recipient: Haeckel, Ernst Dating: 03.10.1890
