BRIEF OHNE UMSCHLAG Meyer, Elisabeth Author: Meyer, Elisabeth Recipient: Haeckel, Agnes Dating: 05.11.1898
BRIEF OHNE UMSCHLAG Meyer, Elisabeth Author: Meyer, Elisabeth Recipient: Haeckel, Agnes Dating: 27.11.1898
BRIEF [O.A.] Meyer, Elisabeth Author: Meyer, Elisabeth Recipient: Haeckel, Ernst; Haeckel, Agnes [Eltern] Dating: 17.10.1898