Documents relating to congresses 1870-1873, 1877: minutes 1872, statutes 1871, letters, resolutions etc.; letters and telegrams of sympathy received by the meeting in Lausanne commemorating the fifth anniversary of the establishment of the Paris Commune, 18 March 1876; records of the Comité fédéral (romand): general correspondence, circulars, reports, lists of addresses, financial records and correspondence with sections in Basel, Berne, La Chaux-de-Fonds and Courtelary; records, including minute books and statutes, of the sections Courtelary, Geneva, Lausanne, Neuchâtel and of the Sozialdemokratischer Verein Bern.