|Here is a one-page editorial comment by David P. Morgan entitled "Piggyback: 'The Most Realistic Approach.'" It was published originally in the May 1955 issue of "Trains" magazine, page 7. Top Photo Caption: "A yard engine noses into Pennsy's new Chicago piggyback terminal to pick up loaded flats for the maiden run of symbol run TT2." Photo by W.A. Akin, Jr. Shown here is Pennsylvania Railroad engine #9297, an FS-10 built by Fairbanks-Morse in April of 1949, rated at 1,000 horsepower, and retired in September of 1965 after just 16 years of revenue service.