| Reference Number | MIMM/2023-2-2 |
| Title | Optician's Trial Set |
| Date | 1875-1925 |
| Description | Black leather-covered box with a securing mechanism and a fitted interior lined in purple velvet and silk.
The case contains a complete trial set for hypermetropia, comprising eight positive lenses and a pair of nickel silver trial spectacles. The spectacles feature plain, straight sides, |
| Extent | 10 parts |
| Dimensions | 180mm x 40mm x 120mm |
| Digital Collections | View online in our digital collections |
| Copyright | Free to use under the terms of the Creative Commons Licence Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
| Credit Line | Royal College of Physicians of Ireland |
| Object Name | Optical Instrument |
| Term | Vision Tests |
| Ophthalmology -- Instrumentation |