Assay balance, by John Field of the Royal Mint, in

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Assay balance, by John Field of the Royal Mint, in a glazed mahogany case. 11.5" steel beam Swart-neck and steel centre knife. Unusual arrestment system mountef on a vertical mahogany splat. Vertical action spring-loaded lever release. Date 1818, or very near


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Royal Mint (Pontyclun)
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