Correspondence, pamphlets, leaflets, flyers, serial issues, clippings, reports, bulletins, and newsletters, relating to pre-World War II socialism, communism, nationalism and antisemitism in Poland; the German occupation of Poland during World War II and the Polish resistance movement; miscellaneous aspects of post-World War II Polish history; Vatican diplomatic relations during World War II; and personal affairs. Includes Polish government reports, 1930-1939, on activities of socialist, trade-union and Jewish organizations; and clippings and other printed matter, 1961-1968, relating to chu...