Wooden plaque, 10 x 12 inches, presented by Ivan Flint, President of the National Water Resource Association, to the U.S. Conference of Mayors at the 1993 Annual Convention. It reads: 'In Grateful Appreciation of Their Outstanding Service to the Association'. The United States Conference of Mayors is the official non-partisan organization for cities with populations of 30,000 or more. The cities are each represented by their mayor or other chief elected official.