| Ref No | LDGSL/1088/AN |
| Title | Geological photographs by unknown authors |
| Date | [1890s-1900s] |
| Level | SubSeries |
| Extent | 39 lantern slides |
| Format | Photograph/drawing/painting/print |
| Access Conditions | Access is by appointment only. Please contact the Archivist for further information. |
| Language | English |
| ArchNote | Description by Caroline Lam |