BRIEF [O.A.] Jaeger, Mabel (geb. Bleek) Author: Jaeger, Mabel (geb. Bleek) Recipient: Haeckel, Ernst Dating: 16.02.1914
BRIEF [O.A.] Jaeger, Mabel (geb. Bleek) Author: Jaeger, Mabel (geb. Bleek) Recipient: Haeckel, Ernst Dating: 19.10.1914
BRIEF [O.A.] Jaeger, Mabel (geb. Bleek) Author: Jaeger, Mabel (geb. Bleek) Recipient: Haeckel, Ernst Dating: 11.03.1917
BRIEF [O.A.] Jaeger, Mabel (geb. Bleek) Author: Jaeger, Mabel (geb. Bleek) Recipient: Haeckel, Ernst Dating: 25.03.1917
BRIEF [O.A.] Jaeger, Mabel (geb. Bleek) Author: Jaeger, Mabel (geb. Bleek) Recipient: Haeckel, Ernst Dating: 25.06.1918
KARTE Jaeger, Mabel (geb. Bleek) Author: Jaeger, Mabel (geb. Bleek) Recipient: Haeckel, Ernst Dating: 04.08.1918
BRIEF [O.A.] Jaeger, Mabel (geb. Bleek) Author: Jaeger, Mabel (geb. Bleek) Recipient: Haeckel, Ernst Dating: 14.02.1919