| Here is the lower illustration on page 17 of the Pennsylvania Railroad Company's 110th Annual Report for the Year Ending 31 December 1956. The photographer is not identified. Photo Caption: "TrucTrain ~ PRR's version of 'piggyback' ~ continues to grow rapidly in extent and revenue. The service moves highway trailers by special flatcar in fast schedules between key cities and interchange points with several other railroads." Photo taken from the pedestrian footbridge located just West of the Passenger Station in Tyrone, Pennsylvania. |