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The Pittsburgh Press

Pittsburgh, Pennsylvania • Thu, Dec 26, 1907Page 6

Gas buildup likely the cause of the explosion at Darr mine, despite mine being ruled non-gaseous

Gas buildup likely the cause of the explosion at Darr mine, despite mine being ruled non-gaseous

Gas buildup likely the cause of the explosion at Darr mine, despite mine being ruled non-gaseous

Gas buildup likely the cause of the explosion at Darr mine, despite mine being ruled non-gaseous

The Pittsburgh Press

Pittsburgh, Pennsylvania • Thu, Dec 26, 1907Page 6

The Pittsburgh Press

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