Statistics for occurrence #1 of “Confederate States” in chapter 10 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...the twenty-two thousand pounds consumed during the action with the iron-clad fleet. The Richmond laboratory made 72,000,000 cartridges in three and a half years, nearly as much as the others in the Confederate States combined. platform car, was very impressive for the Confederates. The car was moved within easy range of the Confederate works, and halted at a curve in the track, so that, by moving it a few fee...
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