A rare Dollond ebony and ivory parallel rule,  English,  late 18th century,
Lot 105
A rare Dollond ebony and ivory parallel rule, English, late 18th century,
Sold for £1,062 (US$ 1,785) inc. premium
Lot Details
A rare Dollond ebony and ivory parallel rule, English, late 18th century,
stamped DOLLOND LONDON 726, with two brass and ivory rollers and central white enamel dial with 1-12 inch scale and blued pointer, in green velvet lined shagreen case, the rule 9in (23cm) wide

Footnotes

  • A very similar rule was sold in these rooms as lot 86 on 19th April 2011.
Activities
Contacts
  1. Jon Baddeley
    Specialist - Scientific Instruments
    Bonhams
    Work
    Montpelier Street
    London, SW7 1HH
    United Kingdom
    Work 0207 393 3872
    FaxFax: +44 20 7393 3873