English triple cased verge for the Turkish market Circa 1870

Fine silver triple cased verge watch by Edward Prior
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A fine English silver triple cased keywound verge watch made for the Turkish market, circa 1870. Full plate gilt finished verge movement, chain fusée, engraved and pierced balance cock and foot. White enamel dial with Turkish numerals. Plain inner case, finely chased and engraved floral decorated middle case, geometric engraved motif to rim and band on outer travel case. Dial and movement signed and movement numbered, inner case stamped with casemaker’s initials WCS and date letter for 1870.
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Signed: 56 mm
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Signed: Edward Prior London