BRIEF [O.A.] Hintze, Wilhelmine Author: Hintze, Wilhelmine Recipient: Haeckel, Ernst Dating: 09.07.1911
BRIEF [O.A.] Hintze, Wilhelmine Author: Hintze, Wilhelmine Recipient: Haeckel, Ernst Dating: 04.08.1911
BRIEF [O.A.] Hintze, Wilhelmine Author: Hintze, Wilhelmine Recipient: Haeckel, Ernst Dating: 21.08.1911
BRIEF [O.A.] Hintze, Wilhelmine Author: Hintze, Wilhelmine Recipient: Haeckel, Ernst Dating: 17.09.1911
BRIEF [O.A.] Hintze, Wilhelmine Author: Hintze, Wilhelmine Recipient: Haeckel, Ernst Dating: 15.10.1911
BRIEF [O.A.] Hintze, Wilhelmine Author: Hintze, Wilhelmine Recipient: Haeckel, Ernst Dating: 03.12.1911
BRIEF [O.A.] Hintze, Wilhelmine Author: Hintze, Wilhelmine Recipient: Haeckel, Ernst Dating: 30.12.1911