- FondsYapp - Papers and photographs of R. H. (Harry) Yapp
- Series3 - Photographic collections
- Subseries1 - Glass plate negatives
- FileS - Switzerland
- 28 more...
- ItemS42 - Small snow-covered spruces
- ItemS43 - Extreme end of platz
- ItemS46 - Woods & snow
- ItemS47 - Chalet and larches on hill
- ItemS48 - The Zuge Gorge
- ItemS49 - Entrance to Avalanche Tunnel
- ItemS51 - Chalet in Wiesen
- ItemS52 - Wiesen Church
- ItemS54 - Tobogganing on Buol Run
- 7 more...