The 4-8-2 Mountain type locomotive was known as a "Mohawk" by the New York Central, and #2933 is one of three hundred second generation Mohawks built for the railroad between 1925 and 1930. One of twenty-five of the last in the series L-2a to L-2d, #2933 was out-shopped by Alco in 1929 for NYC subsidiary Cleveland, Cincinnati, Chicago & St. Louis (the Big Four) as #6233. The NYC eventually rostered in total six hundred of the same type, giving the railroad a distinction of owning the most 4-8-2's on any railroad's roster.
The engine was designed mainly to haul freight trains on the New York Central System. It was renumbered #2933 when it transferred to the NYC in 1936. The engine was retired by the road in 1955. No. 2933 was overlooked during scrappings in 1955-57 and hidden by employees at NYC's Selkirk Yard, NY. At this time, it must have been given a new lease of life as a stationary boiler, given its good condition. Before its retirement it was amongst the last NYC steam loco to be overhauled at its Beech Grove, IN shops.
Then in 1962, when its career as a stationary boiler was finished, it was donated to the Museum of Transportation, making it the only large New York Central steam locomotive to be donated. Today it's at the Museum of Transportation, in St Louis, where it remains on public display.
- This is one of three hundred second generation Mohawks built for the railroad between 1925 and 1930.
- This is one of two surviving examples of NYC's large, modern steam power.
- The only other surviving example of NYC's large, modern steam power is No. 3001.