G. P. O. Clock Systems Documentation

This site contains Engineering Instructions, diagrams, specifications and support articles, concerning the various type of clocks used by the British G.P.O. (General Post Office).

 

Types of clock covered are:-

Master clock system (Clock 36, 46)

Synchronous (mains)

Mechanical

Radial Time Recorders

Watches

Watchman’s Tell Tale Clock

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