Gramophone burglar alarm, c 1939.
 
 

Gramophone burglar alarm, c 1939.

© Science Museum / Science & Society Picture Library

image details

Description
Household burglar alarm made by Burgot Alarms Ltd, England. When this alarm is tripped by an intruder it dials a telephone number and plays a mesage from the gramophone record.
 
Image Ref.
10212088
 
 

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