BRIEF OHNE UMSCHLAG Haeckel, Charlotte Author: Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 26.12.1853
BRIEF OHNE UMSCHLAG Haeckel, Charlotte; Haeckel, Karl Author: Haeckel, Charlotte; Haeckel, Karl Recipient: Haeckel, Ernst Dating: 07.12.1853
BRIEF OHNE UMSCHLAG Haeckel, Charlotte Author: Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 29.11.1853