Northern Pacific Engineering Drawing: Shop Plan - Sole Plate, Bridge 29.16 - Highway 410, Sumner, Washington, Line Segment 051, Milepost 29.3. Sheet 1276 - 6, undated.

Northern Pacific Engineering Drawing: Shop Plan - Slide Door, Bozeman Tunnel, Muir, Montana, Line Segment 041, Milepost 127.5. Sheet 1268 - 14, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch Plan, Bridge 14 - Chambers Creek, south of Titlow, Montana, Line Segment 052, Milepost 14.2. Sheet 1268 - 14, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch Plan, Bozeman Tunnel, Muir, Montana, Line Segment 041, Milepost 127.5. Sheet 1268 - 14, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch Plan, Bozeman Tunnel, Muir, Montana, Line Segment 041, Milepost 127.5. Sheet 1268 - 14, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch Plan, Bozeman Tunnel, Muir, Montana, Line Segment 041, Milepost 127.5. Sheet 1268 - 14, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch Plan, Bozeman Tunnel, Muir, Montana, Line Segment 041, Milepost 127.5. Sheet 1268 - 14, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch - Bill of Material, Bridge 11.72 - Lake Hills Boulevard, south of Wilburton, Washington, Line Segment 405, Milepost 11.7. Sheet 292 - 6678 - 34, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch - Bill of Material, Bridge 11.72 - Lake Hills Boulevard, south of Wilburton, Washington, Line Segment 405, Milepost 11.7. Sheet 292 - 6678 - 36, undated.

Northern Pacific Engineering Drawing: Shop Plan - Sketch - Bill of Material, Bridge 11.72 - Lake Hills Boulevard, south of Wilburton, Washington, Line Segment 405, Milepost 11.7. Sheet 292 - 6678 - 37, undated.