Volkmer. Here is a duplicate 35mm color slide of a photo by William D. Volkmer that was taken in Enola, Pennsylvania, in February of 1963. Shown here (R to L) is Pennsylvania Railroad engine #9771 and another "EF" Class unit whose road number is not recorded. Both were built by GM-EMD and rated at 1,500 horsepower each. #9771 is an EF-15A constructed in January of 1951. |