Claims of Spain to sovereignty and customs sovereignty over the Caroline Islands and especially the Pelew Islands, the Sulu Archipelago, as well as the conditions of Borneo: Vol. 10
Claims of Spain to sovereignty and customs sovereignty over the Caroline Islands and especially the Pelew Islands, the Sulu Archipelago, as well as the conditions of Borneo: Vol. 18
Claims of Spain to sovereignty and customs sovereignty over the Caroline Islands and especially the Pelew Islands, the Sulu Archipelago, as well as the conditions of Borneo: Vol. 6
Claims of Spain to sovereignty and customs sovereignty over the Caroline Islands and especially the Pelew Islands, the Sulu Archipelago, as well as the conditions of Borneo: Vol. 7
Claims of Spain to sovereignty and customs sovereignty over the Caroline Islands and especially the Pelew Islands, the Sulu Archipelago, as well as the conditions of Borneo: Vol. 8
Reports from German missions abroad, in particular naval attachés and military representatives as well as command posts of the Kaiserl. Navy (with handwritten marginal notes of Kaiser Wilhelm II.): Relations of Germany to China, USA, Sweden, Japan, East Africa, Brazil, Austria, England, Canada, Spain, Liberia, Turkey (here: Palestine), Uruguay, New Guinea, South Africa, Philippines, Dec. 1911 - Feb. 1913
Rio-Muni Project of the Forest Council Dr. Georg Escherich. - Use of the Central African jungle in the West African coastal area in cooperation with Spain: vol. 1
Rio-Muni Project of the Forest Council Dr. Georg Escherich. - Use of the Central African jungle in the West African coastal area in cooperation with Spain: vol. 2
Rio-Muni Project of the Forest Council Dr. Georg Escherich. - Use of the Central African jungle in the West African coastal area in cooperation with Spain: vol. 3
