BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 29.10.1890
BRIEF OHNE UMSCHLAG Engelmann, Emma Author: Engelmann, Emma Recipient: Haeckel, Ernst Dating: 07.11.1890
BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 17.04.1870
BRIEF OHNE UMSCHLAG Engelmann, Emma Author: Engelmann, Emma Recipient: Haeckel, Ernst Dating: 24.02.1883
BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 30.06.1888
BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 06.07.1888
BRIEF OHNE UMSCHLAG Engelmann, Emma Author: Engelmann, Emma Recipient: Haeckel, Ernst Dating: 28.11.1890
BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 15.02.1891
BRIEF OHNE UMSCHLAG Engelmann, Theodor Wilhelm Author: Engelmann, Theodor Wilhelm Recipient: Haeckel, Ernst Dating: 16.02.1891
BRIEF OHNE UMSCHLAG Engelmann, Emma Author: Engelmann, Emma Recipient: Haeckel, Ernst Dating: 18.02.1891