octant

octant is a navigational instrument or reflecting instrument.

Also recorded as reflecting quadrant.

Overview

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

measuring instrument used primarily in navigation; type of reflecting instrument

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
“Octant (instrument)”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q427293: octant
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