Unusual English silver pair cased verge watch Circa 1859

Silver pair cased verge watch
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An unusual English silver pair cased verge watch  circa 1859, gilded full plate movement, verge escapement, decoratively pierced balance cock engraved with foliage, flat three-arm balance, fusee and chain, cylindrical pillars, signed B. Musson Louth.
White enamel dial, blue hands, Roman numerals, outer minute ring, surrounded by the words “Keep me clean and use me well and to you the truth will tell” the centre with foliage engraving.
Plain silver inner case, the back with winding aperture, Regency pendant and bow, hallmarked Birmingham 1859.
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Diameter: 56 mm
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Weight: 114 g
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Signed: B. Musson Louth
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Musson, Baldus (Balthazar) From Baden (Germany), working Market Place, Louth (Lines) 1835, naturalised 1861-1868.

In excellent condition.
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Reference 04000