This pane of five stamps was issued to pay tribute to the contributions of the different engines that sparked the railroad revolution in America. Depicted are: the Stourbridge Lion, the first actual locomotive to run on tracks in America; the Best Friend of Charleston, the first locomotive to pull a train in America; the John Bull, the oldest complete engine preserved in the United States; the Brother Jonathan, at one time the fastest locomotive in the world; and the Gowan & Marx, at one time the most powerful of all locomotives.