BRIEF OHNE UMSCHLAG Ammon, Sophie von Author: Ammon, Sophie von Recipient: Haeckel, Ernst Dating: 05.02.1909
BRIEF [O.A.] Recipient: Haeckel, Ernst Corporation: Associazione Lombarda di Giornalisti Dating: ??.02.1909
POSTKARTE Bauernfeind, Ernst Heinrich Author: Bauernfeind, Ernst Heinrich Recipient: Haeckel, Ernst Dating: 11.??.1909
BRIEF OHNE UMSCHLAG Amplewitz, Rudolf Author: Amplewitz, Rudolf Recipient: Haeckel, Ernst Dating: 19.06.1909
BRIEF [O.A.] Bechhold, Heinrich Author: Bechhold, Heinrich Recipient: Haeckel, Ernst Dating: 05.01.1909
BRIEF [O.A.] Bechhold, Heinrich Author: Bechhold, Heinrich Recipient: Haeckel, Ernst Dating: 23.02.1909
BRIEF [O.A.] Beadnell, C... Marsh... Author: Beadnell, C... Marsh... Recipient: Haeckel, Ernst Corporation: H. M. S. King Alfred, China Station Dating: 12.03.1909
BRIEF [O.A.] Bain, George Grantham Author: Bain, George Grantham Recipient: Haeckel, Ernst Corporation: Newspaper Feature and Portrait Service Dating: 05.01.1909
