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Newton: Chronology Project: Catalogs
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View Catalog: MINT00175

Catalog Name MINT00175
Document
Title Holograph queries about standards of trial plates
Subtitle
Author Isaac Newton
Place of Origin no place assigned
Origin Date After 21 August 1710
Repository National Archives (Kew, Richmond)
Pages 307
Wordcount
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0
Language
Contents
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Notes

Refiners have recently found ways of refining gold and silver to above 24 carats and 12 ounces respectively, which can result in over-refined trial plates making perfectly good coinage appear sub-standard.

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