Bridge of Song

剧情：

The latest developments in British Transport - whether it be in London buses or in railway sidings at Margam steelworks, in the construction of a canal lock between Nottingham and the Humber ports or in the use of modern equipment at BTC laundries or continuous foundries - all such new things bring an echo from the past. The work-songs and popular ballads of yesterday serve to bridge time and remind us that the history of transport is continuous - that history is being made today just as certainly as it was made a century ago.