Settlement "Komintern" Donbass. Miners attend refresher courses. Customers at a store near the "Proletarian Dictatorship" mine, shop assistants pour vegetable oil from barrels into bottles. Defective equipment on the territory of mine No. 141. Inscriptions urging miners to fight technical problems and mismanagement. Processes of construction of new coal mines in Donbass. Pupils in practical training at the Gorpromuch school at the mine named after the Comintern. Type of metallurgical plants.