1 plot. - The first Soviet quartz lamps produced at the Moscow Electric Lamp Factory. The use of quartz lamps in medicine. 2syuzh. - Pulkovo Observatory in Leningrad. Manufacturing of a lens at the Leningrad Optical Plant for a powerful telescope. 3syuzh. - Rubber galoshes made at the Institute of Horse-drawn Transport to replace horseshoes in horses. Horse in rubber galoshes. 4syuzh. - Assembling the Soviet typewriter "Leningrad" at the Leningrad plant. 5syuzh. - An American cinematographer is filming a new movie camera (New York).