BRIEF MIT UMSCHLAG
Haeckel, Ernst
Author:
Haeckel, Ernst
Recipient:
Schultze, Leo
Dating:
14.11.1904
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BRIEF MIT UMSCHLAG
Haeckel, Ernst
Author:
Haeckel, Ernst
Recipient:
Schultze, Leo
Dating:
14.05.1911
BRIEF MIT UMSCHLAG
Haeckel, Ernst
Author:
Haeckel, Ernst
Recipient:
Schultze, Leo
Dating:
02.02.1912