U.S. sailors parade along Pennsylvania Avenue in Washington DC. An airship in flight. Two airships in flight. People crowd on either side of the street. Buildings on either side of the street. The sailors march. Airship USS Los Angeles and a blimp in flight. The U.S. flag in the foreground. The sailors parade at U.S. President Herbert Hoover's inauguration ceremony.
Metal-skinned airship ZMC-2 in Grosse Ile, Michigan. The airship is attached to a mooring cable. 'US Navy' written on the ship. ZMC-2 airship is launched. Men watch. The airship in flight. The control room of the airship. The airship in flight.
Police gather outside the Karl-Liebknecht-Haus (Kleine Alexanderstraße 28, 10178 Berlin), the headquarters of the Communist Party of Germany, in Berlin. Members of the Communist Party of Germany flee from policemen along Weydingerstrasse, near the Karl-Liebknecht-Haus. Berlin’s Babylon cinema can be seen nearby. Berlin police wield clubs and run after Communists along present-day Weydingerstrasse and Rosa-Luxemburg-Strasse. Berlin policeman wields his baton at a communist, who narrowly escapes getting hit. German communists run from police.