Lankaran city. The building of the residence of the Soviet delegation includes members of the Iranian delegation. The head of the Iranian delegation, corps general, Senator Jahanbani and the head of the Soviet delegation, envoy of the USSR PD Orlov, sign documents on the demarcation and redemarcation of the Soviet-Iranian state border (on the establishment and restoration of the border). Soviet-Iranian border in the Mugan steppe. Soviet border guards at the border outpost.