English gold open faced cylinder in pair cases Circa 1810

An English 18 carat gold key wind open faced pair cased pocket watch, London Hallmark for 1810. Gilt engraved and signed full plate cylinder movement, pierced and engraved balance cock, diamond end stone, silver regulation. White enamel dial, black Roman numerals, outer minute divisions, subsidiary seconds at 6 and gilt spade hands. Polished inner and outer cases, signed cap numbered 9506.
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Diameter: 53 mm
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Signed: Ellicott & Taylor London