BRIEF [O.A.] Schusser, Hans Author: Schusser, Hans Recipient: Haeckel, Ernst Corporation: Tafelrunde "Deutsche Warte" Dating: ??.??.1907
POSTKARTE Schusser, Hans Author: Schusser, Hans Recipient: Haeckel, Ernst Corporation: Tafelrunde "Deutsche Warte" Dating: 04.05.1907