Contains: Reports on war-critical metals in French North Africa; French reports on the exploitation of mines; geological reports; report on bauxite qualities

Contains: Diamond requisitioning; guide prices for diamonds; mining in French Guinea and Sierra Leone; diamond mines in Dakar; combating the black market

Contains:Correspondence with: Karl Bertram (family pictures taken from U.1-915) and Wilske (extensive), Conrad, Friedrich, Grande (with family picture taken from U.1-914), Hessler, Heuser, Klimmer, Losch, Major Rammstedt, Schmiedeck, Alfred Schober, Dr. C. Stein