Report by N.M. Emanuel on the U.S. Castle Bravo test in the Marshall Islands. The report surmises from fallout data that the bomb used a fission-fusion-fission design, and that the bomb contained a larger than normal amount of fissile material which induced a thermonuclear reaction.

Soviet scientific intelligence report on U.S. nuclear weapons testing on the Marshall Islands in 1954. This report concludes that the Ivy Mike and Castle nuclear detonations were thermonuclear based on gamma ray spectroscopy of fission fragments collected by Soviet aircraft over the USSR and PRC.

A series of letters between Dr. Bhabha and Prime Minister Jawaharlal Nehru covering a wide range of subjects, including the appropriate venues to voice opinions, the status of the Colaba site, meeting with the Pakistan Association for the Advancement of Science, and issues with coordination between the Ministry of Natural Resources and the Ministry of Education on scientific research and education. Also includes a copy of a letter from The Tokyo Shimbun requesting Dr. Bhabha’s presence at a forum discussing the justifiability of American hydrogen bomb tests in the Pacific.

Telegram from Stalin telling Mao that he is ready to receive Gao Gang and Kim Il Sung.

A report on an incident involving the Cuban Ambassador and the delegation of physicians from Cuba while in North Korea.

The Hungarian Ambassador to North Korea reports on a trade dispute between North Korea and the Soviet Union.

Detailed report from Minister Károly Pásztor on his meeting with Kim Il Sung on 17 February 1953.

Report from the Hungarian Chargé d’Affaires in Beijing which talks about the dispute between China, North Korea and the US over POW's. The report also speculates on the reason for India's position on this issue.

Report from Ambassador Károly Práth to Budapest on a conversation he held with Deputy Foreign Minister Yu Changsik. Topics discussed included the sixth session of the DPRK’s Second Supreme People’s Assembly, the mechanization of agriculture in the DPRK, the need to increase quality in North Korean industry and the revisionism and consequent failures of Yugoslavia.

The Hungarian Ambassador to North Korea detailing the behavior of the North Korean delegation at the April 4, 1950 celebrations held in Budapest.