- FondsYapp - Papers and photographs of R. H. (Harry) Yapp
- Series3 - Photographic collections
- Subseries1 - Glass plate negatives
- FileSM - Salt marsh
- 66 more...
- ItemSM71 - [Salt marsh - unlabelled]
- ItemSM72 - [Salt marsh - unlabelled]
- ItemSM73 - [Salt marsh - unlabelled]
- ItemSM74 - [Salt marsh - unlabelled]
- ItemSM75 - [Salt marsh - unlabelled]
- ItemSM76 - Borth negatives
- ItemSM77 - Borth negatives
- ItemSM78 - Borth negatives
- ItemSM78A - Borth negatives
- 7 more...