English tortoiseshell silver verge pocket watch Circa 1853

Pocket watch with 3 cases for Ottoman market
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An English tortoiseshell verge pocket watch circa 1853, Full plate fire gilt movement with pierced and engraved cock. blued steel screws, pierced and engraved foot and plate for the silver regulator disc with Ottoman inscription, enamel dial with black Ottoman inscription in perfect condition, blued steel beetle & poker hands, winding through the back. Silver outer case covered with tortoiseshell and pin decoration, smooth silver 2nd  and 3rd case.
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Diameter: 62 mm
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Weight 149 g
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Signed: Markwick Borrell London
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Reference 016000