Statistics for occurrence #1 of “Sewell's Point” in chapter 2 of Admiral David D. Porter, The Naval History of the Civil War.:
...reatest misfortune to the Union caused by the destruction of the Navy Yard, was the loss of at least twelve hundred fine guns, most of which were uninjured.
A number of them were quickly mounted at Sewell's Point to keep our ships from approaching Norfolk; others were sent to Hatteras Inlet, Ocracocke, Roanoke Island and other points in the sounds of North Carolina. Fifty-three of them were mounted at Port Ro...
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