Columns of workers in Moscow pass through the streets and squares, heading for Red Square, where a demonstration and a military parade took place, dedicated to the 21st anniversary of the October Revolution. General view of Red Square during the demonstration. Military vehicles are driving along Red Square. At the guest bleachers are present: Heroes of the Soviet Union, brigade commander MM Gromov and P. Osipenko, deputy of the Supreme Soviet of the USSR T. Fedorova.