BRIEF OHNE UMSCHLAG Duncan, Isadora Author: Duncan, Isadora Recipient: Haeckel, Ernst Dating: 15.02.1904
BRIEF OHNE UMSCHLAG Duncan, Isadora Author: Duncan, Isadora Recipient: Haeckel, Ernst Dating: 07.04.1904
BRIEF OHNE UMSCHLAG Duncan, Isadora Author: Duncan, Isadora Recipient: Haeckel, Ernst Dating: 15.08.1904