Railroad Archives Online
- FondsE0477 - BNSF Maps, Drawings and Records Collection
- Série003 - Great Northern Railway Company (U.S.)
- Sous-série009 - Engineering Records
- 007 - Part fabrication drawing
- 208 en plus...
- PièceEBP0727 - Great Northern Freight Car Technical Drawing, 1939
- PièceEBP0728 - Great Northern Freight Car Technical Drawing, 1935
- PièceEBP0729 - Great Northern Freight Car Technical Drawing, 1936
- PièceEBP0730 - Great Northern Freight Car Technical Drawing, 1927
- PièceEBP0731 - Great Northern Freight Car Technical Drawing, 1937
- PièceEBP0732 - Great Northern Freight Car Technical Drawing, 1939
- PièceEBP0733 - Great Northern Freight Car Technical Drawing, 1937
- PièceEBP0734 - Great Northern Freight Car Technical Drawing, 1945
- PièceEBP0735 - Great Northern Freight Car Technical Drawing, 1947
- 345 en plus...