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Maximum Fabrication of Powder at the Works of E. I. du Pont & Co.
Cost of Manufacturing & Selling Powder Inclusive of Saltpetre, Soda & Sulphur
Memorandum of Cost of Transportation of Powder at Hagley Yard, 1872
Cost of a Keg of Soda Blasting Powder made on Brandywine during year 1870
Wages of Men at Brandywine Mills
Cost of Supplies on Brandywine for 1878 per Keg of Powder