Master Clock – Telefonbau und Normalzeit

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T&N -Telefonbau und Normalzeit –  Master Clock – 6 x 13 x 35 in. (15 x  33 x 90 cm)

This example of a T&N (Telefonbau und Normalzeit) electric master clock could have been manufactured in the 1960s or 70s. It has a blue enamelled steel case with a fully glazed door. The clock will drive a number of alternating polarity, one minute slave dials.

The escapement is a good quality dead-beat, and the 3/4 second pendulum rod is of wood with  a spun brass bob. There is a seconds subsidiary dial.