Engineers at work in a tunnel under the Post Office Tower in London.
A look around trunk telephone exchange in disused Underground tunnels beneath Holborn.
Nicely shot film of a granite quarry in Scotland.
Look around new operating theatre in Scottish hospital.
Men at work in Meadow Bank salt mine. Winsford, Cheshire.
Documentary film about the years 1905-1910, a period of technological and political change.
Documentary covering changes in women's lives and status between l890 and 1930.