Great Northern Railway Hopper car 71838, covered bottom-dump hopper at Allentown, Pennsylvania in 1988. Other subject classes: Hopper car

Northern Pacific boxcar 7788, at Girard, Pennsylvania, July 1960.

Northern Pacific boxcar 97656, at Altoona, Pennsylvania, May 1967.

Northern Pacific boxcar 97667, at Ambridge, Pennsylvania, October 1965.