B & O William Mason

This locomotive was one of two purchased in 1856 from the Mason Machine Works in Massachusetts. It was one of railways first modern steam locomotives and worked for 40 years before being retired and preserved.
 It was taken out of storage for display at the Chicago World Fair in 1893 and other expositions over the years and also has had a long movie career, probably best known in The Great Locomotive Chase of 1956 but continuing as recently as 2003.
 The boiler now needs a new crown sheet and the locomotive has been cosmetically restored for display at the B &O Museum.

 More here.