Key for the Model 25-7D Master clock with special dial

Programme Cabinet, part of Minute Impulse Time System,1950-1959

Case for Electric Time Recorder, 1950-1959

Time Stamp for Stamping the Time on Documents, 1950-1959

Time Cards, 1950-1959

A Master Clock, Model 25-7 by ITR Ltd, 1950-1959

Impulse Accumulator, for use with a ITR Ltd Master Clock, 1950-1959

International Superelectric " Supervised" Secondary Clocks, 1930-1959

Model 25-7D Master clock with special dial by International Time Recording Company Limited

Master Relay Clock Components, 1950-1959

Super-electric Time Recorder by International Time Recording Co

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