Powers-Weightman-Rosengarten Co. Works, East Schuylkill Falls. Powers & Weightman, Manufacturing Chemists, Philadelphia. Established 1818 [graphic] / A. Blanc Philadelphia. - Free Library

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Powers-Weightman-Rosengarten Co. Works, East Schuylkill Falls. Powers & Weightman, Manufacturing Chemists, Philadelphia. Established 1818 [graphic] / A. Blanc Philadelphia.

Powers-Weightman-Rosengarten Co. Works, East Schuylkill…

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