This is a type of 4-6-0, steam locomotive built by the Mason Locomotive Works in 1867.
While Latham Cole makes a speech about the railroad the engine was busy building the highest and longest wooden trestle bridge.
When John Reid and Tonto found the engine it was busy collecting purest rare silver rocks.
When the locomotive leaves with Rebecca Reid and Danny even Latham Cole Tonto stop the train with a bird in the cage. The engineer told the railroad workers to come out the the tunnel as the train couple to the freight cars of the silver rocks. Later during a battle with the Indianans Butch Cavendish told the Engineer to get the train moving and make the engine go faster to chase Tonto on a handcar.
When the Constitution was at promontory, Utah for the transcontinental railroad along side with another steam locomotive "The Jupiter" Tonto climb into the cab and stole the train and the Jupiter chase the locomotive.
When Rebecca Reid and Danny put on the brakes of the locomotive the train didn't fall of the bridge and it didn't derail.
After the great train chase the constitution made it back to the town to give John Reid a reward just before he was leaving the town.
After filming the movie The locomotive and The Jupiter are both donated to the Filmore and Western Railway were they are seen today.
The engine was own by Latham Cole.
The engine is the only locomotive that help build the railroad, and didn't derailed.
The engine used to be On display at the gate of the Hollywood Studios at Disney California Adventure for the movie premiere that occurred on June 22, 2013.
The engine was used in a Advil commercial heavily modified but still retains some trademarks to identify it.
The engine is now being used as a train in the HBO show Westworld. The engine retains the side tanks and head lamp from the Advil commercial but is now painted in a red and black livery. In Westworld it is named the "Black Ridge Limited".
The Constitution strongly resembles Illinois Central Railroad #382, the very same locomotive that Casey Jones drove on that fateful night in 1900. Only difference is that the Constitution has a rounded top firebox instead of a square shaped Belbare firebox like on the 382.
The Locomotive was featured in Disney INFINITY.