BRIEF OHNE UMSCHLAG Haeckel, Walter Author: Haeckel, Walter Recipient: Plate, Ludwig Dating: 20.10.1912
BRIEF OHNE UMSCHLAG Magnussen, Eleonore Author: Magnussen, Eleonore Recipient: Plate, Ludwig Dating: 03.07.1909
BRIEF OHNE UMSCHLAG Magnussen, Eleonore Author: Magnussen, Eleonore Recipient: Plate, Ludwig Dating: 08.07.1909