Confederate gun at Battery Dantzler, Drewry's Bluff.
Unknown author<span style="display: none;">Unknown author</span>
File from <i><a rel="nofollow" class="external text" href="https://archive.org/stream/photographichist03mill#page/93/mode/1up">The Photographic History of The Civil War in Ten Volumes: Volume Three, The Decisive Battles</a></i>. The Review of Reviews Co., New York. 1911. p. 93.