BRIEF OHNE UMSCHLAG Giebel, Christian Author: Giebel, Christian Recipient: Haeckel, Ernst Dating: 16.03.1865
BRIEF OHNE UMSCHLAG Giebel, Christian Author: Giebel, Christian Recipient: Haeckel, Ernst Dating: 17.01.1865
BRIEF OHNE UMSCHLAG Giebel, Christian Author: Giebel, Christian Recipient: Haeckel, Ernst Dating: 19.06.1865
BRIEF OHNE UMSCHLAG Giebel, Christian Author: Giebel, Christian Recipient: Haeckel, Ernst Dating: 03.12.1863