BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 17.08.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 26.08.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 07.09.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 20.09.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 26.09.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 14.10.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 04.12.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Rottenburg, Paul Dating: 20.12.1906
BRIEF OHNE UMSCHLAG Schillings, Carl Georg Author: Schillings, Carl Georg Recipient: Haeckel, Ernst Dating: 27.12.1906
ANSICHTSKARTE Delle Grazie, Marie Eugenie; Müllner, Laurenz Author: Delle Grazie, Marie Eugenie; Müllner, Laurenz Recipient: Haeckel, Ernst Dating: 23.08.1906