BRIEF [O.A.] Barbulowitsch, Boguljub S. Author: Barbulowitsch, Boguljub S. Recipient: Haeckel, Ernst Dating: 03.11.1913
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 15.10.1901
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 23.01.1905
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 21.07.1908
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 18.12.1908
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 01.01.1910
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 15.01.1910
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 01.02.1910
BRIEF [O.A.] Ivezic, Gerassim P... Author: Ivezic, Gerassim P... Recipient: Haeckel, Ernst Dating: 01.02.1914
BRIEF OHNE UMSCHLAG Radowanowic, Marinko Author: Radowanowic, Marinko Recipient: Haeckel, Ernst Dating: 28.11.1875