Soviet miners work extra hard to supply coal for their troops fighting the Germans.
Unused / unissued material - no paperwork - dates unclear or unknown.
Russian titles. Russian voiceover.
Large coal mine somewhere in the Soviet Union.
Miners arrive at work, they walk under a picture of Joseph Stalin. A man walks to the top of the pit head winding gear and puts up a flag. His comrades look on.
Coal is brought up to the surface in tipper trucks. The trucks are pulled along on a chain and then the coal is tipped out onto a massive pile. Lots of coal is poured onto the pile.
A train carries away the coal to the front. A flag flies in the foreground as we seen mountains of coal in the background.
N.B. Apparently the voiceover says that the miners are working extra hard to provide coal for the men fighting at the front during World War Two (WWII).