These are artifacts excavated from a mountain castle site from the Warring States period. Items found: * 4 lead bullets for a matchlock gun * 1 menuki (sword ornament) * A helmet part (front ornament?) * A matchlock gun part (spring?) * A hexagonal bronze rod (purpose unknown) The lead bullets for the matchlock gun include 3 unfired bullets and 1 bullet deformed after impact. They tell a story of battle.