John Clark, Edinburgh Silver Microscope 1754

Catalogue number #1519237801

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Description:

Silver simple microscope signed J. Clark, fecit Edibr (Edinburgh, Scotland), black fishskin case with silver fittings and a silver mount stamped with a star on the lid. The foot of the microscope is mounted on this with a vertical pllar, folding concave mirror, focusing to the stage by a knurled knob and screw. The microscope has a wheel of five numbered objectives above ranging sequentually in power - all original and present. Original silver slide with five specimens and turned ivory box with brass wire and circular mica specimen covers. The tweezers are not original. The charm of this exceedingly rare and jewel-like microscope makes this one of the most desireable of all early simple microscopes. It works perfectly. The specimen of some small flea can be seen under the lowest power objctive complete but under the highest power one sees a single leg clearly together with its microscopic hairs. Everyone I've demonstrated it to has been entranced and astonished. There has been some damage to the silver by the mounting of the concave mirror (shown close-up in my photos) but this does not detract from the operation of the instrument. About half a dozen examples of John Clark's silver microscopes are recorded. He offered them for sale by advertisement in Edinburgh in 1754. Case 4" (10 cm) x 1.75" (4.5 cm) height including the silver mount 1.1" (2.8 cm) height mounted on the case 6.2" (15.8 cm)

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