Union Pacific Railway Engine No. 737 or UP 737 is a 4-4-0 "American" type steam locomotive. It is currently the oldest preserved Union Pacific steam locomotive. It was originally acquired by the Union Pacific Railroad (UP) in 1887.
Union Pacific Railway Engine No. 737 or UP 737 is a 4-4-0 "American" type steam locomotive. It is currently the oldest preserved Union Pacific steam locomotive. It was originally acquired by the Union Pacific Railroad (UP) in 1887. (en)