- FondsYapp - Papers and photographs of R. H. (Harry) Yapp
- Series3 - Photographic collections
- Subseries1 - Glass plate negatives
- FileSM - Salt marsh
- 9 more...
- ItemSM11 - Escarpment edge of sward
- ItemSM12 - Glandyfi end
- ItemSM13 - Scarp
- ItemSM15 - Two scarps
- ItemSM16 - Scarp showing reconstruction of sward
- ItemSM17 - Scarp along river edge
- ItemSM18 - Extending sward
- ItemSM19 - Edge of extending sward
- ItemSM20 - Glyceria extending on silt
- 64 more...