Educational film by the London, Midland and Scottish Railway about absolute block working. This version has a digitally restored audio track to remove some of the hiss and boost the bass (as a result it is near silent until about 40 seconds in).
This film is public domain in the United Kingdom and United States.
Негізгі бет Автокөліктер мен көлік құралдары Sentinels of Safety (1938)
Пікірлер