The Good Humor truck is one of the best known symbols of food vending on wheels. In the early 1920s, Harry Burt, Sr., the proprietor of an ice cream parlor in Youngstown, Ohio, created a chocolate-coated vanilla ice cream bar on a stick with the help of his son, Harry Burt, Jr. Good Humor bars were peddled in gleaming white refrigerated trucks by driver / salesmen in white uniforms; a set of bells announced the truck's presence. Other businessmen soon established Good Humor franchises in major cities. The Smithsonian's 1938 Chevrolet truck was used in the Boston area.