Correspondence, diaries, speeches and writings, memoranda, reports, notes, printed matter, and photographs, relating to Yugoslav politics and government, relations between Yugoslavia and the Soviet Union, Yugoslavia during World War II, the Yugoslav government-in-exile, Draža Mihailović and the Četnik resistance movement in occupied Yugoslavia, and the activities of Serbian émigré groups following World War II. Gavrilović was a Yugoslav statesman and diplomat; ambassador to the Soviet Union, 1940-1941; member, Yugoslav government-in-exile, London, 1941-1943.