ANSICHTSKARTE Krauseneck, Gustav Adolf Author: Krauseneck, Gustav Adolf Recipient: Haeckel, Ernst Dating: 18.05.1911
ANSICHTSKARTE Krauseneck, Gustav Adolf Author: Krauseneck, Gustav Adolf Recipient: Haeckel, Ernst Dating: 30.12.1913
ANSICHTSKARTE Krauseneck, Gustav Adolf Author: Krauseneck, Gustav Adolf Recipient: Haeckel, Ernst Dating: 29.12.1906
ANSICHTSKARTE Meyer, Elisabeth; Meyer, Hans Author: Meyer, Elisabeth; Meyer, Hans Recipient: Haeckel, Agnes Dating: 28.03.1910
ANSICHTSKARTE Krauseneck, Valentine Author: Krauseneck, Valentine Recipient: Haeckel, Ernst Dating: 31.12.1908