Item title reads - New tube halfway mark.
Victoria Line under construction in London.
M/S Green Park, pan to elevated shot of tunnel workings. M/S sign for Victoria Line. M/S machine at top of shaft. M/S looking down shaft. M/S section of tunnel where Green Park Station will be. M/S men looking at plan of tunnel, C/U arrow on plan of tunnel which points to position of drum digger. Good travelling shots along tunnel and lines. Various shots digger at face of tunnel.
C/U and M/S clay being carried away on conveyor. Various shots as man looks through theodolite. C/U "1000 ft" marked on wall of tunnel, this is distance from Green Park. M/S wall segment pulled forward. M/S as it is unloaded. C/U workman watching. Various shots as segments are placed into position. M/S section of completed tunnel.