BRIEF OHNE UMSCHLAG Salverda, Matthijs Author: Salverda, Matthijs Recipient: Haeckel, Ernst Dating: 22.08.1865
BRIEF OHNE UMSCHLAG Salverda, Matthijs Author: Salverda, Matthijs Recipient: Haeckel, Ernst Dating: 19.08.1865
BRIEF OHNE UMSCHLAG Salverda, Matthijs Author: Salverda, Matthijs Recipient: Haeckel, Ernst Dating: 20.07.1865
BRIEF OHNE UMSCHLAG Salverda, Matthijs Author: Salverda, Matthijs Recipient: Haeckel, Ernst Dating: 06.08.1865