Mainline steam trains in Great Britain
The most famous steam locomotive operating on the British main line is the 1923 built "Flying Scotsman". After being taken into public ownership in 2004, following a decade long refit it returned to mainline service in 2016. The fastest steam locomotive ever built, the 1938 built "Mallard", was also certified for main line operation briefly in the 1980s.
John Bull (locomotive)
John Bull is a British-built railroad steam locomotive that operated in the United States. It was operated for the first time on September 15, 1831, and it became the oldest operable steam locomotive in the world when the Smithsonian Institution operated it in 1981. Built by Robert Stephenson and Company, the "John Bull" was initially purchased by and operated for the Camden and Amboy Railroad, the first railroad in New Jersey, which gave "John Bull" the number 1 and its first name, ""Stevens"". (Robert L. Stevens was president of the Camden and Amboy Railroad at the time.). The C&A used the locomotive heavily from 1833 until 1866, when it was removed from active service and placed in storage.