ANSICHTSKARTE Kölliker, Albert von Author: Kölliker, Albert von Recipient: Haeckel, Ernst Dating: ??.??.1896
ANSICHTSKARTE Haeckel, Ernst Franz Max Author: Haeckel, Ernst Franz Max Recipient: Haeckel, Ernst Dating: 15.02.1911
ANSICHTSKARTE Haeckel, Ernst Franz Max Author: Haeckel, Ernst Franz Max Recipient: Haeckel, Ernst Dating: 15.02.1913
ANSICHTSKARTE Haeckel, Walther; Haeckel, Josefa Author: Haeckel, Walther; Haeckel, Josefa Recipient: Haeckel, Agnes Dating: 09.10.1901