The steam engine persisted as the only type of locomotive operating in the United States until the introduction of the electric train in 1895 and, even then, steam engines continued to dominate the rails until the 1950s when diesel came into wide use. The inscription "28%" on the coal tender indicates that the engine had the potential to lift or drag up to twenty-eight thousand pounds of dead weight. The Central Vermont Railway retired No. 220 from service in 1956 and presented it to the Shelburne Museum for preservation. The museum built the surrounding shed soon afterward to protect the locomotive and the private car (Grand Isle) from the elements.[2]