A rare Dollond ivory and ebony parallel rule,  English,  dated 1776,
A rare Dollond ivory and ebony parallel rule, English, dated 1776,
stamped DOLLOND LONDON 1776, the two brass runners with ivory scales connected to central enamel dial blued steel pointer and 1-12 scale, in original fishskin covered and green velvet lined case 9in (23cm) long
Sold for £1,920 inc. premium

Auction Notices

  • Please note that the date of this instrument is circa 1780 and the serial number is 1776.

Category: Collectibles / Scientific Instruments


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Y CITES

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Jon Baddeley Bonhams
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Specialist - Scientific Instruments