--At the Bridesburgh arsenal, in Philadelphia, there are not less than 180,000 percussion caps manufactured daily.
Sixty sheets of copper are thus consumed, weighing three pounds. It is estimated that a sheet, which costs one dollar, will yield 2,240 caps.
Fourteen thousand caps may be filled from a pound of fulminating powder.
The Daily Dispatch: December 3, 1861. Richmond Dispatch. 4 pages. by Cowardin & Hammersley. Richmond. December 3, 1861. microfilm. Ann Arbor, Mi : Proquest. 1 microfilm reel ; 35 mm.
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