Cannon Ball from San Diego's Sister City Cavite, Republic of the Philippines. This relic is one of the many cannon balls fired from the Spanish Artillery installed at the Canacoa U.S. Naval Base (now Naval Base Cavite at Sangley Point), Cavite City, Philippines in 1807 then occupied by the Spanish Naval Defenders Against Foreign Invaders. Presented by Cavite Mayor Tim Encarnacion during the Sister City International, Southern California Chapter Regional Conference in San Diego.