Railroad Archives Online
- CollectionD0036 - George Werkema Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3003 - Freight Cars
- 450 more...
- Itemimg879 - Great Northern Gondola 78499 at Denver, Colorado, 1990
- Itemimg880 - Great Northern Gondola 78516 at Amarillo, Texas, 1980
- Itemimg881 - Great Northern Gondola 78563 at Longmont, Colorado, 1989
- Itemimg882 - Great Northern Gondola 78580 at Albuquerque, New Mexico, 1998
- Itemimg883 - Great Northern Gondola 78594 at Albuquerque, New Mexico, 1980
- Itemimg884 - Great Northern Gondola 78615 at Albuquerque, New Mexico, 1996
- Itemimg885 - Great Northern Gondola 78627 at Denver, Colorado, 1982
- Itemimg886 - Great Northern Gondola 78629 at Denver, Colorado, 1989
- Itemimg887 - Great Northern Gondola 78661 at Albuquerque, New Mexico, 1978
- 60 more...