Large sized (20cm / 7.8 inches) dividers in brass and steel with beautiful original patina and decorative turned details. Separate thumbscrews allow for fine hairline adjustments of the wing and legs. These would have been used for very precise mathematical measurements, such as marking graduations on scientific instruments.
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Instrumentum is based in the United States and specializes in high quality 17th and 18th century scientific instruments for architecture, mathematics and navigation. We have collected antique instruments for over 20 years with a focus on early and rare European architectural drafting sets, dividers, and rules. Please check regularly as new additions are made and prices may change. If you are interested in something particular please contact us at email@example.com.