repeating circle

repeating circle is a astronomical instrument or measuring instrument.

Overview

It is associated with France. The record gives 1784 as its date of establishment or first appearance. Catalogue entries for instruments state maker, signature, completeness and working condition. VALÉORINE records this subject so that lots referring to it can be described consistently.

In detail

type of angular measurement instrument, notably used for navigation

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“Repeating circle”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q893387: repeating circle
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