In June 2005, Steam Locomotive No. 2 (also called Steam Locomotive Type 123 in the age of "Tetsudoin" [Railway Bureau], or Steam Locomotive Type 120 in the age of JNR) was designated as an important cultural asset.
2005年6月、2号蒸気機関車（旧鉄道院国鉄120形蒸気機関車）が重要文化財に指定された。