Top Left: : Pennsy Mountain type engine on a sliding downgrade on Horseshoe Curve
Retainer valves set to keep brakes on causing smoke under stock cars. - By J.W. Pontin.
Top Right:: Fan train on 3-ft.gauge E.Broad Top Railroad & Coal Co..stops to pose on line's largest bridge at Pogue, Pa. - By William Moedinger, Jr.
Bot. Left: Central of New Jersey 4-6-2, Class G-3s locomotive built by Baldwin. Unknown author.
Bot. Rt:: The Erie Limited, crack New York-Chicago train of the Erie Railroad carries a heavy head end traffic. By Donald W. Furler