Sailors at work stoking ships furnace with coal.
Sailors stoking ship's furnace. Location of events unknown.
Military. Sailors at work stoking furnaces of steamship. Room w/ lots of boilers & pipes & valves and steam. Sailors heaving coal; huge pile of coal; chute; etc. The men working using tools - shovels; etc.. Pan left;other guys push a cart full of coal along a track.; Heading into small tunnel in brick wall at left. Fossil fuels.