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Amgueddfa Cymru – Museum Wales
White enamel with black lettering, supported on a wooden frame. A danger notice in respect of blasting operations at the Dinorwig Slate Quarries, Llanberis. The notice states that the blasting commences at 12.55 and ending 1.3. Bilingual notice with the English section on the left corner and the Welsh section on the right corner.
