It gets stuck easily. Its parts are not interchangeable with any other steam traction engine. It has limited uses. Yet everywhere the Case steam road roller is shown, it draws a crowd.“People are used to a steam engine having four wheels,” explains Lynette Briden, Fargo, N.D., who along with her husband, Jim, and Jerry and Claudia Axvig, Hawley, Minn., owns a rare 40 HP Case ...