BRIEF OHNE UMSCHLAG Renooz, Céline Author: Renooz, Céline Recipient: Haeckel, Ernst Dating: 20.08.1888
BRIEF OHNE UMSCHLAG Ritter, Paul von Author: Ritter, Paul von Recipient: Haeckel, Ernst Dating: 25.03.1894
BRIEF OHNE UMSCHLAG Ritter, Paul von Author: Ritter, Paul von Recipient: Haeckel, Ernst Dating: 02.02.1891
BRIEF OHNE UMSCHLAG Rottenburg, Paul von Author: Rottenburg, Paul von Recipient: Haeckel, Ernst Dating: 21.03.1901
BRIEF OHNE UMSCHLAG Rottenburg, Paul von Author: Rottenburg, Paul von Recipient: Haeckel, Ernst Dating: 21.06.1889
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Agnes Dating: 26.08.1900
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Carl & Charlotte [Eltern] Dating: 18.04.1867
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte Dating: 21.08.1878
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Agnes Dating: 30.08.1878
BRIEF OHNE UMSCHLAG Hartnack, Edmund Author: Hartnack, Edmund Recipient: Haeckel, Ernst Dating: 20.01.1857
