Item showing machinery which ensures time signals and speaking clock are correct.
Item title reads - Time please!
Good shot of Big Ben taken from the Parliament Square side, also shot from halfway up clock. Various shots of the apparatus of the Greenwich time signal in a small building in Surrey. Various shots of the machinery and wireless receiver. M/S as a secretary stops typing, C/U as she dials the speaking clock TIM. The voice is heard over the telephone. L/S of the cable room of the telephone exchange, the engineer goes into the clock room where the voice of TIM is transmitted. He checks it is working properly and we see the machinery which ensures the announcement is made at the right time and the process of broadcasting.