Texas and Pacific No. 610 is a Class I-1a 2-10-4 "Texas" type steam locomotive built in 1927 by the Lima Locomotive Works for the Texas and Pacific Railway.
610 was designed to haul passenger and freight trains on the T&P. The engine was retired in 1951 and was donated to the Will Rogers Memorial Center, where it sat on static display. In 1976, the locomotive was restored so it used to haul the American Freedom Train for the portion of its tour in Texas. After pulling the American Freedom Train, the locomotive was leased by the Southern Railway in 1977 for use in its steam excursion program. Today, the locomotive is now on static display at the Texas State Railroad, and will likely never run again due to its instability.