Great Northern Boxcar 37304 at Denver, Colorado, August 29, 1980. Other subject classes: Box car

Great Northern Boxcar 37515 at Denver, Colorado, April 10, 1965. Other subject classes: Box car

Great Northern Boxcar 37786 at Denver, Colorado, March 23, 1981. Other subject classes: Box car

Great Northern Boxcar 38040 at Denver, Colorado, September 15, 1982. Other subject classes: Box car

Great Northern Boxcar 38233 at Denver, Colorado, July 10, 1984. Other subject classes: Box car

Great Northern Boxcar 39509 at Denver, Colorado, April 10, 1965. Other subject classes: Box car

Great Northern Boxcar 39515 at Denver, Colorado, February 27, 1966. Other subject classes: Box car

Great Northern Boxcar 39672 at Denver, Colorado, May 10, 1978. Other subject classes: Box car

Great Northern Boxcar 39805 at Denver, Colorado, May 10, 1978. Other subject classes: Box car

Great Northern Boxcar 40176 at Denver, Colorado, April 9, 1966. Other subject classes: Box car