BRIEF OHNE UMSCHLAG Grazie, Marie Eugenie delle Author: Grazie, Marie Eugenie delle Recipient: Haeckel, Ernst Dating: 16.02.1895
BRIEF OHNE UMSCHLAG Grazie, Marie Eugenie delle Author: Grazie, Marie Eugenie delle Recipient: Haeckel, Ernst Dating: 16.02.1895
POSTKARTE Grazie, Marie Eugenie delle Author: Grazie, Marie Eugenie delle Recipient: Haeckel, Ernst Dating: 22.08.1903
BRIEF [O.A.] Baerenbach, Friedrich von Author: Baerenbach, Friedrich von Recipient: Haeckel, Ernst Dating: 10.11.1876
BRIEF [O.A.] Baerenbach, Friedrich von Author: Baerenbach, Friedrich von Recipient: Haeckel, Ernst Dating: 12.10.1877
VISITENKARTE Adler, Moritz (1831 - 1907) Author: Adler, Moritz (1831 - 1907) Recipient: Haeckel, Ernst Dating: 28.02.1894
BRIEF [O.A.] Abayawira, M. P. Abraham Author: Abayawira, M. P. Abraham Recipient: Haeckel, Ernst Dating: 12.05.1899