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Letter from C.P. Bryne.

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This is a letter written by C.P. Bryne, an inspector for the 22nd Bituminous Inspection District. The letter was written to Mr. H.M. McDonald in…

Rules and Rulings of the Pennsylvania Workmen's Compensation Board.

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Rules and Rulings of the Pennsylvania Workmen's Compensation Board is a bulletin published by the Workmen's Compensation Bureau of the Department of…

Greenfield Tap and Die Corporation Threading Machine Ad.

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An advertisement for the threading machine produced by the GTD Corporation. This advertisement was found in an issue of Coal Age magazine, dated…