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.
Baldwin Locomotive Works
There are many Baldwin built steam locomotives currently operating in the United States, Canada, and several other countries around the world. Out of all the Baldwin built steam locomotives that are operational or have operated in recent years, the most recognized locomotives are Reading 2101, Southern Railway 4501, Frisco 1522, Nickel Plate 587, Southern Pacific 2467, Southern Pacific 2472, Spokane, Portland and Seattle 700, the oldest surviving 4-8-4 Northern type steam locomotive, Santa Fe 3751, and the last domestic steam locomotive Baldwin built, Chesapeake and Ohio 1309.