Compound Microscope, Case and Accessories, c. 1853 | |
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| Inventory Number: | 53440 |
| Object Type: | Object |
| Subject Classification(s): | Microscopy |
| Brief Description: | This copper alloy instrument is carried on trunnions on a flat tripod foot. The curved limb supports a sleeve holding the body tube. The body can be racked up and down within the sleeve, for coarse focusing, by two mill-edged knobs at the rear of the limb. The eyepiece screws into the top of the body. A vertical screw on the front of the lower end of the body moves an inner cylinder, with an internal thread to take objectives, for fine focusing. The rectangular stage has a sliding bracket to support specimens. A rotating disk with four apertures is mounted on the underside of the stage. A cylinder extends below the stage and as inner cylinder, with a pinhole to take a mirror pushes into it. The wooden case also holds an eyepiece, two Nicol prisms polarizers and two objectives that do not fit this instrument. |
| Primary Inscriptions: | "Horne Thornthwaite & Wood Newgate St. London." on the foot |
| Provenance: | Not ascertained. Pre 1950. Plaque on foot reads "A TOKEN OF grateful remembrance from the Members of the Plymouth Mechanics Institute to the REV. W.I. ODGERS 1853". |
| Collection Group: | |
| Material(s): |
Copper alloy Glass Wood Baize Metal |
There are no associated narratives. | |
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