English plain silver pair cased verge pocket watch Circa 1739

Open faced pocket watch by John Shaw
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An early London pair cased verge watch in very beautiful condition, circa 1739.
Silver pair cases with watchpaper and hallmarks London 1739. Early version and splendid fire gilt verge movement with worm gear, grotesque face and the main plate signed and numbered. Signed silver champlevé dial with Roman numerals, Arabic minutes and  probably original Poker & Beetle steel hands.
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Diameter: 50 mm
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Weight: 92 g
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Signed: John Shaw London
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John Shaw had already been a London watchmaker in the time before 1700. Only rarely there are found such early verge watches in such good condition.