Konrad Sieniewicz: correspondence - May 1949 [Korespondencja Konrada Sieniewicza - maj 1949].
ASSEMBLY OF CAPTIVE EUROPEAN NATIONS - Reports No.5/55; 21/55; 22/55;41/55; 67/56.
CHRISTIAN DEMOCRATIC REVIEW published by Christian Democratic Union of Central Europe (in English): No.1/54-9/54; 10/55-13/55.
Letters to Konrad Sieniewicz from Maria Bronowska.
Programs and statements of Polish and Central European Christain Trade Unions: Związek Rzemieślników i Robotników Polskich w Wielkiej Brytanii.
Letters to Konrad Sieniewicz from Tadeusz Kunicki.
Documents of the Council of Polish Political Parties - Rada Polskich Stronnictw Politycznych w Londynie - meetings, political correspondence, open letters, reports about situation in Poland, speeches, bulletins.
Manuscript: Przeciw Tezom Niemieckim by Jan Downar.
Minutes and resolutions from general meeting of Stronnictwo Pracy in Exile, Paris, November 17, 1956.
Official declarations of the Polish Christian Democratic Labour Party (SP-PCLP) on underground organizations in Poland.
