May Day demonstration of workers and a military parade on Red Square in Moscow. The mobile booth "Proletkulta" performs on the stage at the Simonov Monastery. Buildings of the Salt factories in the town of Slavyansk. View of the sanatorium for the Red Army in the city of Slavyansk. Inauguration of the monument to the commissioner for press, propaganda and agitation of Petrograd V. Volodarsky; speech of the chairman of the Petrograd Soviet G. Ye. Zinoviev.