- Collection2013.6 - David Davies Railway Collection
- Series2013.6.36 - Photographs
- Subseries2013.6.36.3 - Postcards
- File2013.6.36.3.03 - Canadian Pacific Railway - Spiral Tunnels Near Field, BC
- Item2013.6.36.3.03.01 - CPR spiral tunnels viewpoint at Yoho National Park
- Item2013.6.36.3.03.02 - Cathedral Mountain from spiral tunnel, Alt. 10,284 ft., Canadian Rockies
- Item2013.6.36.3.03.03 - Cathedral Mountain, Alt. 10,284 ft., from spiral tunnel, Canadian Rockies
- Item2013.6.36.3.03.04 - CPR main line near Yoho, B.C.
- Item2013.6.36.3.03.05 - Cathedral Mountain from tunnel
- Item2013.6.36.3.03.06 - Upper spiral tunnels, Field, BC
- Item2013.6.36.3.03.07 - Cathedral Mountain
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