Contains among other things: Paul Range, The Keetmanshoop Groundwater Situation. Berlin 1915 Joachim Voigts. Lüderitzland. A field map of our former colony Deutsch-Südwestafrika. Windhoek o.J.

Contains above all: Correspondence with the State Secretary of the R e i c h s k o l o n i a l a m t and the Southwest African Aviation Association Keetmanshoop on support for the promotion of aviation in the German colonies; financing of a flight expedition in Cameroon and flight tests in D e u t s c h - S ü d w e s t a f r i k a , D e u t s c h - O s t a f r i k a , Cameroon; contracts with Emil Jeannin Flugzeugbau Gesellschaft mbH, Berlin-Johannisthal, with Luft-Fahrzeug-Gesellschaft mbH, Berlin, with Automobil-

Contains: Construction of the railway from Bonaberi (Duala) to the Manenguba Mountains in Cameroon. - Contract between the Kamerun-Eisenbahngesellschaft, Berlin and the Deutsche Kolonial-Eisenbahn-Bau- und Betriebs-Gesellschaft zu Berlin dated 6 March 1907 (copy) Otavi-Eisenbahn. - Purchase and lease contract between the treasury of the German South West African protectorate and the Otavi Minen- und Eisenbahn-Gesellschaft, Berlin of 23 November 1909 and 30 March 1910 respectively (copy) Südbahn between Lüderitzbucht and Keetmanshoop and Seeheim and Kalkfontein. - Lease agreement between the treasury of the protectorate Deutsch-Südwestafrika and the Deutsche Kolonial Eisenbahn-Bau- und Betriebsgesellschaft, Berlin from 9.12.1909 respectively 15.1.1910 operation of the Cameroon railway Bonaberi (Duala) - Manengubagebirge, Cameroon. - Contract between the Kamerun-Eisenbahn-Gesellschaft, Berlin and the Deutsche Kolonial-Eisenbahn-Bau- und Betriebs-Gesellschaft, Berlin of 1 and 8 Oct. 1913 (copy) Construction of railways in South Angola. - Draft contract (without date) Future of the state railways in German South West Africa. - Note from Sept. 3, 1909