Zaichenko, an innovative locksmith at the Leningrad Kirov Machine-Building Metallurgical Plant, during classes in the library, in the turbine shop, during the demonstration of his inventions - a mobile grinding machine and a planer with special devices, on which he grinds the turbine rotor and large turbine parts, replacing most of the work of 15-20 people who performed these operations manually. The city of Leningrad. View of shops on Nevsky Prospekt, Ligovka. Visitors during a visit to specialized department stores "Porcelain", "Tissues", "Obuv", food - "Bread". Visitors inspect the windows of these stores, which demonstrate the products of the Leningrad Porcelain Factory named after Lomonosov, the Leningrad Shoe Factory "Skorokhod" and "Proletarskaya Pobeda", and make purchases. Customers buy bread and cakes at the Bread store on Ligovka. Museum-apartment of DI Mendeleev at Leningrad University, where the scientist lived his last years. View of the museum exhibits in the office and library of DI Mendeleev. The head of the museum, the daughter of D. I. Mendeleev, M. D. Mendeleev, tells about the scientist. The city of Leningrad. The third traditional motocross with the participation of teams from Moscow and Leningrad. Participants during the competition. The USSR champion Gringout falls. Spectators are watching the competition. The winners are Muscovite, USSR champion Korneev and Leningrader Lavrentyev.