The German Südwester. The story of a colonial fighter* Experience report of a German soldier of the Schutztruppe in Deutsch-Südwestafrika during the First World War Zur Zwischenablage hinzufügen 16/622 Akt(e) 1939 Teil vonGerman Historical Museum Foundation In: German Historical Museum Foundation Ensslin & Laiblin
Youth book about the German colony Cameroon* Drums call through Cameroon. With many pictures by Wilhelm Petersen Zur Zwischenablage hinzufügen 16/648<11. Tsd.> Akt(e) 1934 Teil vonGerman Historical Museum Foundation In: German Historical Museum Foundation Petersen, Erich Robert