Sign - danger, alarm signal system
Sign - 'Emergency, danger warning system...'
"A signal of 3 rings - continuously repeated - is a danger signal. Any person hearing the signal should proceed to the nearest telephone and ask operator at the pit bottom or surface for instructions. If a telephone is not available, persons hearing the above signal shall proceed towards the pit bottom without delay. By Order, Manager"
- Coal Mining
- Object Number:
- Gift of Salford Museum and Art Gallery
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