This 40’ steel box car was built in March 1937 and converted by Western Pacific in 1941 into a less-than-carload boxcar assigned to express passenger service. It was renumbered into the 220071-220194 series, and equipped with steam lines, and friction bearing trucks. Western Pacific was a Class 1 Railroad formed in 1903 in order to offer another rail option to the established Utah routes of the Southern Pacific. WP was acquired in 1982 by Union Pacific Railroad.