Bulgaria - the visit of the delegation of the DRV headed by the First Secretary of the Central Committee of the workers ' Party of Vietnam Le Duan in Bulgaria. Meeting at the airport. Negotiations with the government of Bulgaria (Todor Zhivkov). The laying of wreaths at the mausoleum G. Dimitrova. Visit the Sophia children's combine them. Ho Chi Minh City. The meeting at the plant, a friendship meeting in the hall "Universiade". Speech at the meeting of T. Zhivkov and Le Duan. The signing of the Treaty of friendship and mutual assistance. Bulgaria - a New method of construction and mining (floor mounted on the ground, then lift up). Building in Sofia houses the Central Council of trade unions. Bulgaria - the First short film festival in Plovdiv. The awards for the best films. Bulgaria - delivery of the State awards of the BNR leaders of economy, science, art, working people. Prize presents T. Zhivkov. Bulgaria Gala evening at the cultural centre of the GDR in Sofia, in honor of the 26th anniversary of the GDR. Newsreel of the late 40s: the Creation of the GDR. Pieck and O. Grotewohl. The restoration of the economy. Modern construction in the GDR. Plant for the production of potassium near Magdeburg, built with the help of the USSR, Poland, Czechoslovakia. Bulgaria - Hero of Socialist Labor, the Builder Nikolai Zlobin (USSR) was the guest of the Bulgarian builders: talking to the workers, talks about his method of construction. Construction of buildings in Gabrovo by the method of N. Zlobina. Bulgaria - Establishment of a monument in honor of the 100th anniversary of the 1876 uprising in Panagyurishte.