G. & H. Barnett, Black Diamond File Works - Philadelphia, PA



The Black Diamond File Works of Messers. G. & H. Barnett, 41 & 43 Richmond Street are among the largest in the city.  They occupy a brick building forty by one hundred feet, and employ generally thirty workman.  The file and rasps made by this firm are purchased principally by the dealers and machinists in Philadelphia, by whom they are highly prized, but the large quantities are also shipped to Western and Southern states.

Messers. Barnett claim to have a new and peculiar process of tempering files, known only to themselves, and this way may be one cause of popularity of their products.

"Philadelphia and its Manufactures in 1867",
E.T. Freedley


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Black Diamond Files


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