The building of Sevzapkino. Columns of demonstrators are moving along Bolshaya Dmitrovka, Dzerzhinsky square, Pushkinskaya (Strastnaya) square, Kamenny Most (The Big Stone Bridge) and Red Square. Decorated cars and trucks. This is a Military parade on Red Square. L.D. Trotsky, N.I. Muralov, S.S. Kamenev are among the…