10-inch bell on a 9 x 12-inch wooden base presented to Mayor Golding by San Francisco Mayor Willie L. Brown, Jr., at the U.S. Conference of Mayors in San Francisco in June 1997. The Conference of Mayors is the official non-partisan organization for cities with populations of 30,000 or more. The organization sets policy as the collective voice of municipalities and their leaders. By standing as a unified voice, municipal leaders have influenced Presidents and Congresses to enact legislation that has provided a legacy of benefits to cities.