| Sweetland. Here is a duplicate 35mm color slide of a photo by David R. Sweetland that was taken in Cresson, Pennsylvania, in July of 1960. Shown here (L to R) are Pennsylvania Railroad engines #9797 and another "EF" Class unit whose road number is not recorded. Both were built by GM-EMD. #9797 is an EF-15A constructed in March of 1951 and rated at 1,500 horsepower. |