Here, a soldier guards a row of Napoleon gun-howitzers, one of the most common and deadly field pieces of the American Civil War. Developed under the auspices of Louis Napoleon of France, it first appeared in the American artillery in 1857. The smooth-bore Napoleon fired a 12.3-pound projectile and had a maximum effective range of about 1,600 yards.
July 3, 2013 10:57 AM PDT
Photo by: Library of Congress, Prints & Photographs Division