BRIEF OHNE UMSCHLAG Amarasekara, A. S. Author: Amarasekara, A. S. Recipient: Haeckel, Ernst Dating: 17.01.1882
BRIEF [O.A.] Stipperger Author: Stipperger Recipient: Haeckel, Ernst Corporation: Austro-Hungarian Lloyd's Steam Navigation Company Dating: 28.01.1882
BRIEF OHNE UMSCHLAG Haeckel, Charlotte Author: Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Hertwig, Richard Dating: 10.01.1882
BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 01.12.1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Agnes Dating: 17.02.1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 17.02.1882