Pennsy Power III: Steam, Electric, MU's, Motor Cars, Diesel Cars, Buses, Trucks, Airplanes, Boats, Art, 1847-1968

"In 1962 Al Staufer and Bert Pennypacker published 'Pennsy Power', which was a study of PRR's steam and electric locomotives from 1900-1962. Al and Bert teamed up again in 1968, to produce 'Pennsy Power II' which dealt primarily with the Pennsylvania RR's multiple units and diesel locomotives. This book, 'Pennsy Power III', came into being because of the vast and diverse types of power owned by the nation's largest railroad. Equipment not covered in the first two volumes included: pre-1900 locomotives, motor cars, buses, trucks, airplanes and boats. In addition to full coverage in these areas, this book has large chapters on steam, electric, and diesel locomotives. "There is no duplication of text or pictures in these three volumes."