Add to My ListSharePlayback issues? Try another server.Server 1Server 2Server 3Server 4Server 5Server 6Server 7Server 8Server 9Server 10Server 11Server 12Server 13Server 14Server 15The Principles of Safety and Hygiene in a Copper Mine1972720 minReleasedJan 01, 1972DirectorKrzysztof KieślowskiCommissioned film about the conditions of safety and hygiene in the Lubin copper mine.