- FondsYapp - Papers and photographs of R. H. (Harry) Yapp
- Series3 - Photographic collections
- Subseries1 - Glass plate negatives
- FileS - Switzerland
- 10 more...
- ItemS13 - Davos Valley
- ItemS14 - Davos Dorf
- ItemS15 - Chalet near Fluela Thal
- ItemS16 - Swiss woman
- ItemS17 - Dishma Thal
- ItemS18 - In Davos Valley
- ItemS20 - Chalet in deep snow
- ItemS21 - Davos Lake
- ItemS22 - Davos Lake
- 25 more...