ANSICHTSKARTE Grazie, Marie Eugenie delle; Müllner, Laurenz Author: Grazie, Marie Eugenie delle; Müllner, Laurenz Recipient: Haeckel, Ernst Dating: 12.08.1905
ANSICHTSKARTE Semon, Richard W... Author: Semon, Richard W... Recipient: Haeckel, Ernst Dating: 13.09.1905
ANSICHTSKARTE Semon, Richard W... Author: Semon, Richard W... Recipient: Haeckel, Ernst Dating: 28.12.1905
ANSICHTSKARTE Semon, Maria; Semon, Richard; Haeckel, Heinrich Author: Semon, Maria; Semon, Richard; Haeckel, Heinrich Recipient: Haeckel, Ernst Dating: 24.09.1905