Vintage St. Louis Expo Belt Buckle featuring Geronimo (St. Louis World's Fair in 1904). The buckle appears to be made of copper, it weighs 2.8 ounces and measures 3 13/16 x 2 3/16 inches. The metal is in very good condition, the tarnish enhances the look of the buckle. This buckle will make a very nice addition to your belt buckle collection.