Internal Services and Personnel - Registry files for the first period (1919-1927). Include 29 (Organization - International Secretariat), 30 (Internal Services - General), 32 (Buildings and Furniture).
Publications Service and Reproduction of Documents - Registry files for the first period (1919-1927). Include 37 (Printing and Supplies), 43 (Printing and Publishing), 49 (Distribution of Documents).
Mandates Section - Registry files for the first period (1919-1927). Include 1 (Mandates).
Administrative Commissions and Minorities Section - Registry files for the first period (1919-1927). Include 2 (Administrative Commissions - General), 3 (Saar Basin), 3A (Saar Plebiscite), 4 (Danzig), 41 (Minority Questions), 46 (Upper Silesia).
Health and Social Questions - Registry files for the first period (1919-1927). Include 12 (Social Questions - General), 12A (Opium Traffic), 12B (Health), 23 (Women's Questions).
Political Section - Registry files for the first period (1919-1927). Include 11 (Political - General), 11A (Upper Silesia), 28 (Admissions to the League of Nations).
Legal Section - Registry files for the first period (1919-1927). Include 15 (Labour), 16 (Labour Conference, Washington, 1919), 17 (Treaties), 19 (Legal), 21 (Court of International Justice, The Hague).
Several Sections, Political and Technical - Registry files for the first period (1919-1927). Include 25 (Organization of the League of Nations - General), 26 (Organization - General - Assembly), 27 (Organization - General - Council), 39 (Miscellaneous), 40 (League of Nations - General), 40A (Genoa and then the Hague Economic Conference), 40B (Lausanne Conference).