Only Online Auction

Geneva, Sep 22, 2021

LOT 443

William Rushby
Folding naturalist’s pocket microscope; bone, glass, leather

CHF 1,500 - 2,000

EUR 1,400 - 1,850 / USD 1,650 - 2,200 / HKD 12,800 - 17,100

Folding naturalist’s pocket microscope with turned bone handle and its magnifying lens also folding. The instrument is mounted on a shaft with a spike to fix the subject to be observed: plants, insects, etc.

With its embossed leather case marked “W: Rushby Cherry Tres = Hill”, on the reverse, two ammonites.

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Grading System
Grade: AA

Very good

Case: 3


Brand William Rushby, Cherry Tree Hill, near Sheffield, Yorkshire (England)

Year 1787-1798

Material bone, glass, leather

Dimensions L. instrument 47.4 mm. / L. case 54 x 26.3 x 22.9 mm.

Weight 33.4 gr. (approx.)

Accessories original fitted box


Rushby, William (c.1745. – c.1810)

Manufacturer of scientific instruments active in Cherry Tree Hill, a village not far from Sheffield in Yorkshire, England.

This type of microscope is first illustrated in Essays on the Microscope by George Adams Junior (1750-1795), inventor and maker of scientific instruments for King George III (1738-1820).


The purchase price payable by a buyer will be the sum of the final bid price plus the buyer’s premium, together with any applicable sales or compensating use tax. In addition to the hammer price, the buyer’s premium is payable as follows: 25% of the hammer price on each lot.

Important notice – Special conditions Please look carefully at all the photos as they are an integral part of the description. Any defect not mentioned in the descriptions but visible on the photos will be considered as described and cannot lead to any claim. The dimensions are given as an indication and may slightly differ from the measures mentioned by the manufacturers especially for contemporary watches. The photos are not retouched. Colors may differ from reality. For timepieces, we guarantee neither the functioning nor the precision of the movement, nor the water-resistance of the case. In addition, please note that movements, parts of mechanisms or cases may be incomplete. The lots are sold “as is”, described to the best of our knowledge and cannot be returned. Once the online bid is placed by the bidder, it cannot be cancelled.