| Ref No | LDGSL/1088/HP/8 |
| Title | Photomicrograph of a section of obsidian |
| Date | [1890s-1900s] |
| Level | Item |
| Extent | 1 lantern slide |
| Format | Photograph/drawing/painting/print |
| Description | Black and white photomicrograph of a section of obsidian, by H Preston, [1890s-1900s]. |
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| Access Conditions | Access is by appointment only. Please contact the Archivist for further information. |
| Language | English |
| ArchNote | Description by Caroline Lam |
| CreatorName | PRESTON | H | fl [1890s-1900s] | geological photographer |