Presentation in the Kremlin of credentials by the Greek envoy J. Panourias, there are MI Kalinin, GV Chicherin and others. Stay of the Minister of Public Education Ridvan-Nafiz-Bey in Moscow. Celebrating the Day of Enlightenment in Leningrad. The inventor of the metal airship KE Tsiolkovsky in his laboratory in Kaluga. Voronezh tram park. Demonstration of service and search dogs in Moscow. Finish of the All-Union Motorcycle Ride in Moscow.