straightedge

straightedge is a physical tool or drawing instrument.

Overview

Its recorded use is straightedge construction and compass and straightedge construction. 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

any of various tools, usually long bars or strips of wood or metal, having straight and true edges and used for drawing or cutting accurate straight lines

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
“Straightedge”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q354733: straightedge
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