This bell has been constructed by "A-bomb Victims Hiroshima Higankessho-no-kai Union" on September 20th, 1964. They carved a world map with no borer lines on the bell. This world map symbolizes the slogan of "One world". The bell was designed in a form of a logo expressing the need to ban atomic and hydrologic power, and on the opposite side of the bell, there is a mirror which reflects the inside of one's heart to the sound of the bell. The sound of the bell has been selected as "Japan's best 100 sounds" by Ministry of Environment in 1996.