Hungarian man invents a book with moving diagrams.
Several close up shots of the electronics book Principicon in several languages - Russian, English, Hungarian. Instead of diagrams explaining electrical parts, there are small paper models with moving parts to show electrical flow, etc. Various shots of the author of the new electronics book with moving diagrams, Istvan Halasz, at work. He is making moving diagrams showing how a car gear box moves inside when the lever is moved. He has an actual gear box on his desk to assist him in his work.
Date found in the old record - 10/03/1964. Hungarian voiceover.