Linen-Prover
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A one-page dictionary entry on the linen-prover, a small microscope used to count threads in linen fabric. The base has a square opening that exposes a known area of cloth, and a magnifier above allows the threads to be counted. It includes an engraved illustration in side and front views, a note that some provers have four perforations of different sizes, and a cross-reference to the entry for Reed.
- Type
- Article
- Date
- 1876
- Language
- English
- Pages
- 1
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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