| Ref No | GSL/POR/53/21 |
| Title | Portrait of Maj Gen Joseph Ellison Portlock |
| Date | [1850s] |
| Level | Item |
| Extent | 1 item |
| Format | Portrait |
| Description | Portrait of Maj Gen Joseph Ellison Portlock, President of the Geological Society, 1856-1858. Printed black and white photograph from original by Maull & Polyblank, [1850s]. |
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| Access Conditions | Access is by appointment only. Please contact the Archivist for further information. |
| Language | English |
| ArchNote | Description by John Thackray |
| CreatorName | Maull & Polyblank | photographers | 1854-1865 |