Fecha de lanzamiento
01 Jan, 1953
Tiempo de ejecución
00:23: (HH:MM)
Sinopsis
A BAFTA special award nominated documentary looking at the formation of the coalfields; explanation of the appearance of coal seams at different levels; modern methods of assessing and locating quality of new coal deposits. (Part of the "Coal-mining as a Craft" series)
Fotos