9:27

Standard Electric Time Master Clock Operation

15:06

GENTS Pulsynetic master clock (english)

14:12

IBM Master Clocks, Timekeepers of the Industrial Age. An ITM Clock video

25:00

Stuff Learnt Wiring A Master Clock 36 And Relay Set GMT34.

13:00

I Built an Atmosphere Powered Battery..

11:33

The Electromechanical Pendulum of the 36 Master Clock

27:06

Playing Music on the Oldest Running Computer in America!

9:50

The Museum of Timekeeping, Upton, Nottinghamshire presented by Viscount Alan Midleton