BRIEF [O.A.] Vial, L... C... Emile Author: Vial, L... C... Emile Recipient: Haeckel, Ernst Dating: 04.06.1899
BRIEF [O.A.] Vial, L... C... Emile Author: Vial, L... C... Emile Recipient: Haeckel, Ernst Dating: 28.03.1900