The first part contains in photocopy: documents of the PCB 1925-1928; documents of the ILO, Belgian group such as correspondence with the International Secretariat (IS) of the ILO, proceedings of meetings 1928-1935, etc.; documents of the ICL and the PSR consisting of correspondence, circulars, statements 1935-1938 and minutes of the Executive Committee of the PSR 1936-1938; documents relating to Spain and the Spanish Civil War, consisting of correspondence and notes 1931-1939; correspondence relating to the Jeunesses Trotskyistes Belges 1932-1937; documents relating to the Revolutionair-Socialistische Arbeiderspartij and Henk Sneevliet, consisting of correspondence and statements 1936-1949; file on/of Erwin Wolf 1933-1937, 1967; documents of Contre le Courant consisting of minutes of the meetings of its political bureau 1943-1944, correspondence, internal bulletins and statements 1939-1946; documents on the Belgian èntrisme' 1935. The second part contains in original: documents of the ILO, Belgian group such as internal bulletins 1932-1934; internal bulletins of the ICL, Brussels Federation 1935-1936; internal bulletins of the PSR 1937-1938; documents of Contre le Courant 1941-1944; correspondence 1949-1978; documents of the TMR and of the International Secretariat (IS) of the TMR consisting of correspondence, proceedings of meetings, internal bulletins, bills and circulars 1964-1978; the manuscript of, and. correspondence on, L̀a Guépéou dans le mouvement Trotskyste'; documents of the Syndicat des Taximen: correspondence, circulars, leaflets 1928-1970; documentation. NB. Originals of the photocopies at The Houghton Library, Harvard University, Cambridge, Mass., USA.
