| RefNo | AP/67/6/2 |
| Level | Item |
| Title | Unpublished photograph, focometer by Silvanus Phillips Thompson |
| Date | [1891] |
| Description | A photograph showing the focometer described in Thompson's paper.
Subject: Scientific apparatus and equipment / Optics |
| Extent | 1p |
| Format | Photograph |
| PhysicalDescription | Albumen photographic print |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA7141 | Thompson; Silvanus Phillips (1851 - 1916); physicist and electrical engineer | 1851 - 1916 |