Contains among other things: Description of the trade exhibition (exhibition of overseas raw materials and semi-finished products) following the Hamburg Trade and Industry Exhibition 1889, Hamburg 1889 Lands and plantations of the Deutsche Handels- und Plantagen-Gesellschaft der Südsee-Inseln zu Hamburg in Samoa, 1888 Official catalogue of the Trade Exhibition Bremen, June 1890
Plans, cost estimates, considerations on new concept, 1960-1962; correspondence to the Museum Schönebecker Str., 1912; procurement and description of objects, 1912; brochure e. Völkerkundl. Exhibition i. d. Stadthalle, 1913; Inquiry e. Collectors about acquisition e. Neu-Guinea-Götzen, incl. 2 photos, 1952-1954; Inquiry d. Museums Recklinghausen, 1957
Rhenish Missionary SocietyContains among other things: The Results of the Sepik Expedition and the Future Exploration of Kaiser Wilhelmsland, 1914 The Surveying Airship Expedition to New Guinea, 1914 Estimate for the Economic Plan of the German Surveying Airship Exhibition in San Francisco, 1915