Statistics for occurrence #1 of “Harper's Ferry” in chapter 15, section c.25.98, page 72 of Southern Historical Society Papers, Volume 12.:
and were rifled with three grooves, after the manner of Parrott.
The army in observation at Harper's Ferry , and that at Manassas, were supplied with old batteries of six-pounder guns and twelve-pounder Howitzers.
A few Parrott guns purchased by the State of Virginia were with Magruder at Big Bethel.
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