Mining and Soil Research in German South West Africa. - Individual cases: vol. 4 Add to clipboard BArch, R 1001/1279 File März 1907 - Febr. 1909 Part of Federal Archives (Archivtektonik) Contains among other things: Annual Report for 1906 of the Zentrale für Bergwesen GmbH zu Frankfurt/Main In: Mining and soil research >> Mining and Soil Research in German South West Africa. - isolated cases