The image is a photograph of a white sign with black text written in Chinese. The text reads "The Swivel Guns: Four 40-pound muzzle-loaders and four 20-pound breechloaders were collectively placed around the eastern, southern and northern recesses of the fortress, as well as the southeastern and northeastern bastions. Today, only a 20 pound breechloader remains, with the rifle still intact." The sign is located in a wooded area with trees and bushes in the background.