Zg430. This attached photo was taken in early 1941 by Chester or Grace Britt showing one of the four guns at Battery Jewell, and the other is photo taken by American forces after the fort was retaken in January, 1945 without firing a shot because the Japanese also wisely abandoned it. Battery Jewell holds the distinction of having the only artillery pieces to fire in combat on the island during WWII. Those unknown 30 Japanese soldiers are now among Japan’s hundreds of thousands of MIA from WWII.