The Swamp Angel Battery from drawing

Photograph of drawing shows soldiers and Parrott cannon named Swamp Angel inside battery designed by Colonel Edward Wellman Serrell of 1st New York Engineers Regiment for Morris Island, South Carolina. A group of soldiers stand outside of the battery.
No. B688.

Mounted with five other photographs with general caption: Charleston Harbor, South Carolina.
Gift; Col. Godwin Ordway; 1948.