| Ref No | LDGSL/857/23 |
| Title | Sketch of the trap dyke, Standard Quarries, Welshpool |
| Date | [1834-1838] |
| Level | Item |
| Extent | 1 item |
| Format | Photograph/drawing/painting/print |
| Description | Pencil sketch of the trap dyke, Standard Quarries, Welshpool, by unknown artist, [1834-1838] Drawing is annotated on the back 'One of the many interesting efforts to represent the great Trap Dyke of Welsh Pool - Standard Quarries'. |
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| Provenance | Murchison collection |
| Access Conditions | Access is by appointment only. Please contact the Archivist for further information. |
| Language | English |
| ArchNote | Description by Caroline Lam |
| Subject | Dykes |