| Here is page six of a 22-page booklet published by the Pennsylvania Railroad entitled "Modern Power For Today's Trains: 1949." It was issued originally during July of 1949. Depicted here (R to L) is PRR engine #5755 and two more units whose road numbers are not recorded. All are AP-20's built by the American Locomotive Company and rated at 2,000 horsepower each. #5755 was constructed in November of 1947 as an AP-20, regeared and reclassified as an AFP-20, and retired in September of 1962 after just 15 years of revenue service. |