BRIEF [O.A.] Schollmayer, Willy Author: Schollmayer, Willy Recipient: Haeckel, Ernst Dating: 15.02.1895
BRIEF [O.A.] Schollmayer, Willy Author: Schollmayer, Willy Recipient: Haeckel, Ernst Dating: 16.07.1894
BRIEF [O.A.] Schollmayer, Willy Author: Schollmayer, Willy Recipient: Haeckel, Ernst Dating: 29.05.1894
BRIEF [O.A.] Schollmayer, Willy Author: Schollmayer, Willy Recipient: Haeckel, Ernst Dating: 15.02.1893
BRIEF [O.A.] Schollmayer, Willy Author: Schollmayer, Willy Recipient: Haeckel, Ernst Dating: 16.05.1892