Coal mining sign, 'Danger warning system..'

Coal mining metallic sign, black and red lettering on white background:

'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, person hearing the above signal shall proceed towards the pit bottom without delay.'


Coal Mining
Object Number:
Gift of Salford Museum and Art Gallery

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