Built in 1976 for Railbox, this XFF10 boxcar was transferred to Southern Pacific ownership in the early 1980s, before ending up at San Luis Central in 1989. TTX was established in 1955 as Trailer Train, and as their business evolved simply became TTX in a 1991 rebranding effort. The San Luis Central Railroad was formed in 1913 in Colorado and is 13 miles long, owning many freight cars which it leases out across the United States.