BRIEF OHNE UMSCHLAG Thiele, Ferdinand Author: Thiele, Ferdinand Recipient: Haeckel, Ernst Dating: 02.02.1907
BRIEF OHNE UMSCHLAG Radde, Gustav Author: Radde, Gustav Recipient: Haeckel, Ernst Corporation: Bibliotheque Publique Dating: 05.09.1890
BRIEF OHNE UMSCHLAG Radde, Gustav Author: Radde, Gustav Recipient: Haeckel, Ernst Corporation: Bibliotheque Publique Dating: 31.10.1892
BRIEF OHNE UMSCHLAG Radde, Gustav Author: Radde, Gustav Recipient: Haeckel, Ernst Corporation: Bibliotheque Publique Dating: 03.11.1897
BRIEF OHNE UMSCHLAG Radde, Gustav Author: Radde, Gustav Recipient: Haeckel, Ernst Corporation: Bibliotheque Publique Dating: 03.01.1898
BRIEF OHNE UMSCHLAG Radde, Gustav Author: Radde, Gustav Recipient: Haeckel, Ernst Corporation: Bibliotheque Publique Dating: 02.05.1898
BRIEF OHNE UMSCHLAG Radde, Gustav Author: Radde, Gustav Recipient: Haeckel, Ernst Corporation: Bibliotheque Publique Dating: 13.01.1899