English, C.1760, unsigned but attributed to John Coventry, with each micrometer glass slide held in a brass frame engraved with the dividing of an inch as 1/50th, 1/100th, 1/500th, 1/1000th 1/5000th and 1/10000th in a fitted sharkskin case, case - 12cm wide
Sold for £1,736
Result plus buyers premium
English, C.1760, unsigned but attributed to John Coventry, with each micrometer glass slide held in a brass frame engraved with the dividing of an inch as 1/50th, 1/100th, 1/500th, 1/1000th 1/5000th and 1/10000th in a fitted sharkskin case, case - 12cm wide
Auction: Fine Photographica & Instruments of Science, 19th Nov, 2020
Viewing Location:
8 Rivermead
Pipers Way
THATCHAM
RG19 4EP
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Viewing by appointment from 1st November 2020
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