| Ref No | LDGSL/1106/DC |
| Title | Geological lantern slides - Diagram Co |
| Date | [1950s] |
| Level | SubSeries |
| 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 |