The image is a photograph of a sign on a concrete surface. The sign is rectangular in shape and has black text written in Japanese. The text reads "150 POUND BRONZE CANNON" and below it, there is a description of the cannon made by the domain Satsuma in 1849, which had been mounted on the Fort Tenpozan, Kagoshima, in the early years of Meiji, the gun barrel was rifled by the Imperial Army Gun Park, Osaka. The diameter of bore: 290mm and the length of base: 4,220mm.