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
- 383 more...
- Itemimg812 - Great Northern Covered Hopper Car 171721 at Albuquerque, New Mexico, 1990
- Itemimg813 - Great Northern Covered Hopper Car 171722, 1970
- Itemimg814 - Great Northern Covered Hopper Car 171747 at Pasco, Washington, 1988
- Itemimg815 - Great Northern Covered Hopper Car 171773 at Denver, Colorado, 1989
- Itemimg816 - Great Northern Covered Hopper Car 171775 at Albuquerque, New Mexico, 1991
- Itemimg817 - Great Northern Covered Hopper Car 171837 at Pasco, Washington, 1983
- Itemimg818 - Great Northern Covered Hopper Car 171854 at Amarillo, Texas, 1980
- Itemimg819 - Great Northern Covered Hopper Car 171864 at Pasco, Washington, 1981
- Itemimg820 - Great Northern Covered Hopper Car 171889 at Pasco, Washington, 1983
- 127 more...