Union Pacific 4012 is a 4884-1 class 4-8-8-4 "Big Boy" type steam locomotive, one of eight preserved Union Pacific Big Boy locomotives. Built in November 1941 by the American Locomotive Company at its Schenectady Locomotive Works of Schenectady, New York, No.
Union Pacific 4012 is a 4884-1 class 4-8-8-4 "Big Boy" type steam locomotive, one of eight preserved Union Pacific Big Boy locomotives. Built in November 1941 by the American Locomotive Company at its Schenectady Locomotive Works of Schenectady, New York, No.
Source: Wikipedia "Union Pacific 4012" · CC BY-SA 4.0
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